What is the authenticity of the following narrations:

1) “When you see the crescent moon fast, and when you see the crescent moon break the fast”

2) “Fast by its sighting and stop fasting by its sighting and if it is hidden from you, then complete the number of Sha’ban as thirty”



1) Imam Muslim (rahimahullah) has recorded this Hadith in his Sahih.

(Sahih Muslim, Hadith: 1081)


2) Imam Bukhari and Imam Muslim (rahimahumallah) have recorded this Hadith.

(Sahih Bukhari, Hadith: 1909 and Sahih Muslim, Hadith: 1081)


These narrations are therefore authentic.


Kindly refer to a reputable Mufti/Darul Ifta for clarity on the issue of moon sighting.



And Allah Ta’ala Knows best.


Answered by: Moulana Suhail Motala


Approved by: Moulana Muhammad Abasoomar


Checked by: Moulana Haroon Abasoomar