Duk hanyar da kowace ƙungiya ta bi wajen isar da da‘wah dole ne ta zama Shari‘ah da aka samo daga sīrar Manzon Allah ﷺ a aikinsa yayin isar da da‘wah. Wannan ya zama dole saboda wajibi ne a bi shi, kamar yadda Allah (SWT) yake cewa: "Lallai, a cikin Manzon Allah akwai kyakkyawan abin koyi ga waɗanda suke fatan Allah da Ranar Ƙarshe, kuma suke ambaton Allah sosai." [TMQ 33:21]. "Ka ce: Idan kuna son Allah, to ku bi ni, Allah zai ƙaunace ku, kuma ya gafarta muku zunubanku." [TMQ 3:31].

The method adopted by any group to convey the da‘wah must be Shari‘ah Law derived from the seerah of the Messenger of Allah (saw) in his performance during the conveyance of the da‘wah. This is so because it is obligatory to follow him, as Allah (swt) says, “Surely, in the Messenger of Allah, is the best example for those who believe in Allah and the Last Day and remember Allah often.” [TMQ 33:21]. “Say if you love Allah follow me, Allah will love you and forgive you your sins.”[TMQ 3:31].

"Duk abin da Manzon ya ba ku, ku karɓa, kuma duk abin da ya hane ku, ku nisanci shi." [TMQ 59:7].