Abu Hurairah, radiyallahu ’anhu, reported that the Messenger of Allah, sallallahu ‘alayhi wasallam, said:
“Verily Allah the Exalted is pure. He does not accept but that which is pure. Allah commands the believers with what He commanded the Messengers. Allah the Almighty has said: \”O you Messengers! Eat of the good things and act righteously\” [23:51-53]. And Allah the Almighty also said: \”O you who believe! Eat of the good things that We have provided you with\” [2:167-172].
Then he (the Prophet) mentioned (the case of) the man who, having journeyed far, is dishevelled and dusty and who stretches out his hands to the sky (saying): \”O Lord! O Lord!\” (while) his food was unlawful, his drink was unlawful, his clothing was unlawful, and he is nourished with unlawful things, so how can he be answered?” [Muslim]