|Al-Wajib and Al-Mandub
The first question of Fatwa No. 590
Q: What is the difference between Wajib, Mandub, Mustahab, and Sunnah?
A: All Praise is due to Allah Alone. Peace and blessings be upon Prophet Muhammad, his family, and Companions! To proceed: These terms differ according to the following terminology: (i) One who performs a Wajib act is rewarded; however, if one neglects such act, punishment is incurred. (ii) Mandub, Mustahab, and Sunnah are similar, if not synonymous. Technically, they refer to a category of acts that if performed, one is rewarded but if neglected, there is no punishment.
May Allah grant us success! May peace and blessings be upon our Prophet Muhammad, his family, and Companions!
Permanent Committee for Scholarly Research and Ifta’