Answer:
(Fatwa: 413/B=67/tb=1432)
The advice of the shopkeeper is alright. Each person should keep his own cap with him. The caps people wear while offering salah and then leave in the mosque usually are too much dirty and smelly. Also, it does not come fit on every person’s head. Many after wearing these caps look funny. The scholars of Fiqh have termed offering salah as makrooh in such conditions.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband
