A brother says that it is not permissible to eat shark because it is a man-eater.

Answer

Ask the brother if he is an authority on the Shariah. Ask him to inform you of the Aimmah-e-Mujtahideen who say that shark is not permissible. Tell him that the Shariah is not the product of an individual's opinions – of a man who appeared on the scene 1435 years after Rasulullah (sallallahu alayhi wasallam). Furthermore, tell him that even if his opinion is as good as gold, then too, in terms of the Shariah it is excreta if it is not backed up by the Qur'aan, Sunnah or the Rulings of the Fuqaha-e-Mujtahideen.