Q: If a person prays while wearing a t-shirt that has depictions of creatures on it, is his prayer valid or should he repeat it?
A: It is valid. But it is forbidden and makrooh to wear such clothing in namaaz and out of namaaz. It keeps away the angels of mercy. Rasulullah (sallallahu alaihi wa sallam) has sounded severe warnings regarding pictures. Nabi (sallallahu alaihi wa sallam) said, “The people to be inflicted with the worst punishment will be the picture makers.” Nabi (sallallahu alaihi wa sallam) has cursed the one who receives interest, the one who gives interest, the tattooist, the tattooed and the picture maker. The hadeeth also explains that the angels of mercy do not enter a home in which there is a picture of an animate object.
And Allah Ta'ala (الله تعالى) knows best.
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