Answer:
(Fatwa: 961/815=D/1430)
May Allah make him a sincere dayee. Amen! Keep his name as Muhammad with no prefix and suffix, it is best. But, if you add and names as Muhammad Ilyas, Muhammad Yusuf, Muhammad Haneef or Muhammad Mahdi, it is also alright, these are good names, you can choose any of them you like.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
