Hadith 12:184
Abu Bakr narrated to us, he said: Hafs narrated to us, from Ja'far, from his father, who said: Ali said: "Whatever dies in the sea, it is a carcass (maytah)."
حدثنا أبو بكر قال نا حفص عن جعفر عن أبيه قال قال علي ما مات في البحر فإنه ميتة