Ma anta biniAAmati rabbika bimajnoonin
مَا أَنتَ بِنِعْمَةِ رَبِّكَ بِمَجْنُونٍ
You are not, [O Muhammad], by the favor of your Lord, a madman. Surah 68:2
So if you are in doubt, [O Muhammad], about that which We have revealed to you, then ask those who have been reading the Scripture before you. The truth has certainly come to you from your Lord, so never be among the doubters. Surah 10:94.
Why would someone believe a mortal and disbelieve the big Al-Lah, who sent his trusted messenger Jibril to him?
