Yes, you can fast on Shab‑e‑Meraj, but it will be a normal nafl (optional) fast, not a specially legislated fast with unique reward in the Shari‘ah. What should be avoided is believing that fasting specifically on the 27th of Rajab (the commonly cited date for Shab‑e‑Meraj) has a fixed, extra virtue proven from authentic hadith, because that belief has no solid evidence.

Core fiqh ruling

  • Fasting in Islam is generally allowed on any day of the year except on a few clearly prohibited days (like the two Eids, and the days of tashriq for those in Mina).
  • Scholars clarify that there is no authentic proof that the 27th of Rajab has a special fasting status in Shari‘ah.
  • Therefore:
    • If someone fasts that day as a routine nafl fast (e.g., Monday/Thursday, or just out of general love of extra worship), it is permissible.
* If someone fasts it _believing_ “this specific date has a special, fixed virtue prescribed by the Prophet ﷺ,” many scholars classify this as an innovation (_bid‘ah_).

Different scholarly views

1. Cautious/strict view (no special fasting)

Many contemporary scholars and fatwa bodies say:

  • Fasting on “the day of Mi‘raj” because it is Mi‘raj is not legislated and falls under bid‘ah.
  • They argue:
    • The exact historical date of Mi‘raj is not firmly established.
    • The Prophet ﷺ and the Companions did not single out this night or the following day with a specific fast.
* Acts of worship that are tied to specific dates and forms need clear proof.

So, they say:

If the day coincides with a day you usually fast (like Monday/Thursday, or alternate days), you may fast with that usual intention, but not with a special “Mi‘raj fast” intention.

2. Permissive but general view

Some teachers say:

  • “Everything is permitted unless there is clear evidence it is forbidden” and there is no specific prohibition on fasting on that date.
  • On that basis, if someone fasts out of general desire for more worship, without claiming a special fixed Shar‘i status, the fast is valid and rewarded like any other nafl fast.

They still warn against:

  • Advertising this fast as sunnah or wajib
  • Claiming definite, specific rewards without strong hadith proof

3. Sufi/folk practice view

In some Sufi and cultural traditions, you will see texts and posters stating huge rewards for fasting on the 27th of Rajab and spending its night in worship.

  • Many hadith scholars have graded these narrations as weak or fabricated, so they do not use them to establish official fiqh rulings.
  • In practice, some people still choose to:
    • Pray extra nafl at night
    • Read Qur’an and make abundant dhikr
    • Fast the following day as a general act of devotion

Practical guidance for you

If you are asking “can we fast on Shab‑e‑Meraj?” for your own practice, most balanced advice looks like this:

  1. You may fast as a normal nafl fast.
    • Treat it like any other voluntary fast in Rajab.
    • If it matches your usual pattern (like Monday/Thursday), even better.
  1. Avoid making it a fixed religious ritual.
    • Do not say or believe: “Islam requires a special Mi‘raj fast,” or “this fast has definitely specific huge rewards narrated in authentic hadith,” because that claim is not proven.
  1. Focus on established Sunnah acts.
    • Regular obligatory prayers, sunnah and nafl prayers.
    • Qur’an recitation, sincere du‘a, charity, and maintaining family ties.
    • These are clearly praised acts on any night, including the night commonly called Shab‑e‑Meraj.

Forum / “trending topic” angle

In recent years, especially around Rajab, discussions trend on forums and social platforms where Muslims ask exactly this: “Is fasting on Shab‑e‑Meraj bid‘ah or allowed?”

Typical patterns in those discussions:

  • One side strongly insists: “No special fast, it’s bid‘ah to single out that day,” and they quote fatawa that explicitly say fasting that day with special belief is rejected worship.
  • Another side replies: “Fasting is generally good, as long as you don’t claim it’s an official sunnah,” and they stress the general permissibility of nafl fasting and worship in blessed months like Rajab.
  • Many community pages now clarify, especially in 2025–2026, that:
    • Shab‑e‑Meraj is a great historical event and a chance to remember the gift of salah.
    • But the night’s observances (staying awake, specific prayers, specific fast) are not formally prescribed in the way Ramadan or the two Eids are.

Simple takeaway

  • Yes, you can fast on the day associated with Shab‑e‑Meraj, but as a regular voluntary fast. The fast itself is valid and allowed.
  • What should be avoided is turning it into a “must,” attaching guaranteed special rewards, or treating it as a fixed ritual of the religion without authentic proof.

Information gathered from public forums or data available on the internet and portrayed here.

TL;DR: Fasting on Shab‑e‑Meraj is allowed as a normal nafl fast, but there is no proven special Shari‘ah ruling or unique reward for that specific date, and turning it into a formal ritual is discouraged.