Ashura: authentic fasting according to the Sunnah

The 10th of the month of al-Muḥarram bears a name that crosses the canonical collections with rare stability: yawm ʿĀshūrāʾ. Its merit is not a cultural inheritance to interpret case by case, but an explicit Sunnah, reported in the two Ṣaḥīḥs (al-Bukhārī and Muslim), practiced by the Prophet ﷺ, encouraged by him among his Companions, and perpetuated by the Salaf.

On Deen Coach, we give this day a strong editorial place: a dedicated article, a reminder notification for the fast, integration in the Adhkār module for invocations associated with breaking the fast. This emphasis is legitimate because it rests on authentic texts, unlike the innovated celebrations we discussed in our article on 1 Muḥarram.

This article lays out what ʿĀshūrāʾ is according to the Sunnah, what it is not, and how to honor it concretely.

The story of ʿĀshūrāʾ: Mūsā ʿalayhi as-salām and the deliverance

The origin of the fast of ʿĀshūrāʾ is reported in Ṣaḥīḥ al-Bukhārī and Ṣaḥīḥ Muslim, on the authority of Ibn ʿAbbās (raḍiyallāhu ʿanhumā). When the Prophet ﷺ emigrated to Madīnah, he observed that the Jews of the city were fasting on the day of ʿĀshūrāʾ. He asked them the reason. They answered that it was a great day, the day on which Allāh saved Mūsā (ʿalayhi as-salām) and his people, and drowned Pharaoh and his folk. Mūsā fasted that day in gratitude, and they fasted in his trail.

The Prophet ﷺ then said a deeply weighty word:

We have more right to Mūsā than you.

And he fasted that day, and ordered that it be fasted.

This word, reported in the two Ṣaḥīḥs, is foundational. It affirms the unity of the prophetic chain: Mūsā (ʿalayhi as-salām), Muḥammad (ﷺ), and all the prophets call to the same tawḥīd. The deliverance of Mūsā against Pharaoh is not the event of another religion; it is an event of the religion of Allāh, in which Muslims stand as the most faithful heirs of the prophetic way.

The fast of ʿĀshūrāʾ is therefore an act of gratitude and remembrance, anchored in a shared prophetic story and specifically renewed by our Prophet ﷺ for the Muslim community.

The status of the fast before and after Ramaḍān was prescribed

The versions reported in the two Ṣaḥīḥs make an important point: the fast of ʿĀshūrāʾ was obligatory at the very beginning of the Madinian period, before the fast of Ramaḍān was prescribed. When Ramaḍān was imposed, the status of ʿĀshūrāʾ shifted: it became strongly recommended (sunnah muʾakkadah according to many scholars), without remaining obligatory. The Prophet ﷺ indicated: "Whoever wishes to fast, let him fast; whoever wishes to leave it, let him leave it" (reported in the two Ṣaḥīḥs).

This in no way diminishes the merit of the day. It simply clarifies its juridical regime: strong recommendation, not obligation.

The merit: expiation of the past year

The specific merit of fasting ʿĀshūrāʾ is reported by Abū Qatādah (raḍiyallāhu ʿanhu) in Ṣaḥīḥ Muslim. When asked about fasting the day of ʿĀshūrāʾ, the Messenger of Allāh ﷺ said:

I hope from Allāh that it expiates the year that precedes it.

It is an immense merit. It must, however, be understood within its frame: minor sins (al-ṣaghāʾir) are erased by prescribed acts of worship; major sins (al-kabāʾir) require a specific repentance (tawbah), as the scholars have reminded us based on other texts. The fast of ʿĀshūrāʾ is a mercy from Allāh, not a blank cheque.

Note also the chosen verb: "I hope" (aḥtasibu). The Prophet ﷺ formulates this as a hope from Allāh, which is the believer's posture of humility before any promise of reward.

Why also fast the 9th day: Tāsūʿāʾ

A precious development is reported in Ṣaḥīḥ Muslim, on the authority of Ibn ʿAbbās (raḍiyallāhu ʿanhumā). When the Prophet ﷺ was told that ʿĀshūrāʾ was a day venerated by Jews and Christians, he said:

If I live until next year, I will fast, in shāʾa Allāh, the 9th.

(Arabic text: لئن بقيت إلى قابل لأصومنّ التاسع.)

The Prophet ﷺ passed away before the following Muḥarram, but this prophetic intention is held by the scholars as a positive Sunnah: it is recommended to fast the 9th and the 10th, or the 10th and the 11th, in order to distinguish oneself from those who fasted the 10th alone. The motivation is clear: al-mukhālafah, respectful distinction, without hostility, marking the Muslim's identity in relation to prior practices.

In practice, the most well-reported and solid combination is: fast the 9th and the 10th together.

And the 11th?

Some scholars mentioned that one may add the 11th, or fast the 10th and the 11th if the 9th was missed. This recommendation rests on a narration discussed by ḥadīth specialists, several contemporary verifiers considering it weak isnād-wise. Practical consequence: 9+10 is the certain combination; 10+11 or 9+10+11 are options defended by some scholars but resting on a less firm basis. If you have a choice, prefer 9+10. Wa Allāhu aʿlam.

How to intend and perform this fast

A few practical points drawn from the texts:

• Intention: to be formulated in the heart the night before. No verbal ritual formula required. A simple inner resolve to fast for Allāh suffices.
• Suḥūr: recommended, like any fast, in line with the general ḥadīth on the blessing of the pre-dawn meal.
• Iftar: at the normal local maghrib time, with the invocations reported from the Prophet ﷺ (present in Deen Coach's Adhkār module).
• A person traveling, ill, in menstruation, in post-partum: exemption follows the general rules of fasting. No mandatory makeup for ʿĀshūrāʾ (since it is no longer an obligation), but one may make it up later as a personal devotion if desired.
• Pregnant or breastfeeding woman: refer to the general conditions for exemption from fasting, asking a qualified scholar if the situation is delicate.

What ʿĀshūrāʾ is not

This is where Deen Coach's sobriety has a meaning. Several deformations surround this day depending on regions and traditions. To remain faithful to the way of the Salaf, two extremes are to be avoided, without naming or pointing fingers at anyone:

• The extreme of ritualized lamentations: public weeping, self-harm, codified annual mourning. None of these acts is reported from the Prophet ﷺ, nor from the Companions (raḍiyallāhu ʿanhum), nor from the Tābiʿūn as a rite associated with ʿĀshūrāʾ. The Sunnah is a fast, not a mourning.
• The extreme of innovated festivity: preparing a specific codified meal, wearing new clothes as a rite, spending more than usual on the belief that this day specifically draws one closer to Allāh. This too has not been established by the Sunnah for this day. Some narrations reported in this sense are judged weak by ḥadīth specialists.

The silence of the Prophet ﷺ and his Companions on these forms is, in the methodology of the Salaf, an eloquent silence. Where the Sunnah prescribed an act (the fast), it said so clearly. Where it prescribed nothing, the addition of a rite is an innovation.

We note this without any polemic. The positive Sunnah (to fast) is clarifying enough. Our editorial role is to teach the Sunnah, not to debate against practices.

ʿĀshūrāʾ's place in the believer's annual cycle

For anyone seeking to build a regular spiritual life, ʿĀshūrāʾ takes its place in a series of high points that the Sunnah has established throughout the lunar year. Naming them briefly helps to grasp why this fast deserves care, and how it dialogues with the rest:

• The six days of Shawwāl (just after Ramaḍān), with the merit reported in Ṣaḥīḥ Muslim equivalent to fasting an entire year, in combination with Ramaḍān.
• Monday and Thursday, weekly recommended fasts reported in the Sunnah.
• The three white days (ayyām al-bīḍ: 13, 14, 15 of each lunar month), likewise reported in the Sunnah.
• The first ten days of Dhū al-Ḥijjah, including the fast of ʿArafah for the non-pilgrim, with a merit of expiating two years reported by Muslim.
• ʿĀshūrāʾ (10 Muḥarram), with the 9th (Tāsūʿāʾ).
• Fasting most of Shaʿbān, following the example of the Prophet ﷺ reported in the two Ṣaḥīḥs.
• Ramaḍān, the obligatory pillar that structures the whole.

None of these fasts requires ceremonial overload. All rest on clear texts. ʿĀshūrāʾ, in its place within this constellation, is one of the most accessible for those who begin: one day, two if possible, with an explicitly reported merit.

Preparing for ʿĀshūrāʾ a week in advance

A few simple gestures help arrive at 9-10 Muḥarram in good conditions, with no ceremonial:

• Verify the local date: the lunar calendar depends on crescent sighting or astronomical calculations according to local authorities. Aligning your date with the religious authority of reference in your country avoids needless divergences.
• Prepare a light suḥūr: whole-grain bread, dates, water, fruit or simple proteins. No codified menus needed.
• Reserve the evening of the 9th and the day of the 10th for more calm: fewer heavy social engagements, more Quran reading, dhikr, duʿāʾ.
• Plan a Ramaḍān qaḍāʾ intention if you have days to make up and ʿĀshūrāʾ falls in a suitable window: one scholarly view allows combining two intentions (qaḍāʾ + ʿĀshūrāʾ); another prefers two separate fasts. In doubt, separating is more cautious. Ask a qualified scholar about your case. Wa Allāhu aʿlam.
• If possible, schedule a modest ṣadaqah on the day itself, without making it a tied rite. Charity is recommended at all times, and combining it with a day of fasting naturally intensifies the spiritual disposition.

A spiritual reading of Mūsā's deliverance

Meditating on the story of Mūsā (ʿalayhi as-salām) and Pharaoh is useful precisely because it ties ʿĀshūrāʾ to a recurring Quranic message. The Quran evokes this deliverance in several sūrahs, including al-Baqarah, al-Aʿrāf, Yūnus, Ṭāhā, ash-Shuʿarāʾ. Three teachings stand out:

• Allāh's aid never fails the tried believer, even when the enemy appears all-powerful. Pharaoh had an army and absolute power over Egypt; he was defeated by Allāh's command.
• Patience (ṣabr) and trust (tawakkul) are the conditions of salvation. Mūsā (ʿalayhi as-salām) walks toward the sea pursued by Pharaoh's armies; he says, as the Quran reports: "Indeed, my Lord is with me; He will guide me" (sūrat ash-Shuʿarāʾ, verse 62).
• Gratitude (shukr) follows deliverance. Mūsā (ʿalayhi as-salām) fasts in thanksgiving. Our fast of ʿĀshūrāʾ stands in this lineage of recognition.

This meditative content requires no ritual addition. It is simply about reading the Quranic passages before or during the fast, in Arabic and in translation, to nourish the intention.

Coherence with the Deen Coach app

The application accompanies this fast with:

• a reminder notification the evening before Tāsūʿāʾ (8 Muḥarram night) and the evening before ʿĀshūrāʾ (9 Muḥarram night),
• the integration of suḥūr and iftar invocations in the Adhkār module, faithfully to the reported texts,
• a gentle reminder of the merit reported by Abū Qatādah (raḍiyallāhu ʿanhu) in Muslim,
• no notification on 1 Muḥarram (see our dedicated article), no festive overload on the 10th: only the essential.

FAQ

If I forgot and only fasted the 10th, did I accomplish the Sunnah? Yes. The 10th is the heart of the merit; the 9th is the recommended addition for distinction. Fasting only the 10th remains valid and grants the merit reported by Muslim. Just plan to anticipate next year to add the 9th.

Can I fast only the 9th without the 10th? This is not the reported form. The Sunnah is the 10th, possibly preceded by the 9th. Fasting only the 9th does not yield the same specific merit.

What if ʿĀshūrāʾ falls on a Friday or a Saturday? There is a general recommendation not to single out Friday or Saturday with an isolated voluntary fast. But when a fast is tied to a precise occasion (like ʿĀshūrāʾ), scholars have indicated that the general rule does not oppose the motivated fast. One may then fast that day, joining if possible the day before (the 9th) to follow the combined Sunnah.

Does the fast of ʿĀshūrāʾ replace a missed Ramaḍān day? No. Missed Ramaḍān days (qaḍāʾ) must be made up with an intention dedicated to that makeup. The fast of ʿĀshūrāʾ is a specific voluntary fast, distinct from qaḍāʾ.

A woman in menstruation on the day of ʿĀshūrāʾ, must she make up? No, there is no obligation to make up voluntary fasts missed due to a legitimate impediment. She may, if she wishes, fast another day as a personal devotion, without considering it a makeup of the Sunnah of ʿĀshūrāʾ, which is tied to the date.

What if I am not used to fasting? Start gently. The fast of ʿĀshūrāʾ is a benevolent entry point: a single day, tied to a strong prophetic story, with an immense reported merit. If you have never fasted, take the intention from the night before, eat a light suḥūr, and orient the day toward simplicity.

In closing

ʿĀshūrāʾ draws its light from the Sunnah itself. It needs no cultural overload, no festive staging, no mourning ceremonial. A fast, an intention, a heart turned toward Allāh in remembrance of the deliverance of Mūsā (ʿalayhi as-salām). And the hope, formulated by the Prophet ﷺ himself, that this day may earn us the mercy of our Lord for the year that has passed.

For any particular situation (health, travel, pregnancy, doubt on the chain of a secondary narration), we refer you to a qualified scholar of your region or to a recognized salafī teaching site.

Wa Allāhu aʿlam.