Answer:
(Fatwa: 1157/1000=L/1429)
It is better to write complete محمدwith U (like Muhammad) without shortening it. O is used in place of waw (و), therefore you had better write U instead of O.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
