بسم الله الرحمن الرحيم
(Fatwa: 1118/119/M=9/1434)
The name ‘Muhammad Eisa Ahmad’ is alright. You should not pay attention to what people say baselessly and should not bother yourself. The name will have good effect over the boy in-shaAllah! However it is better that you add either Muhammad or Ahmad only.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband
