Mughirah bin Abu Burdah who was of the tribe of Banu 'Abd-Dar, narrated that he heard Abu Hurairah say: "The Messenger of Allah said: 'The water of the sea is a means of purification and its dead meat is permissible.'" Abu 'Abdullah (Ibn Majah) said. "I heard that Abu 'Ubaidah AI- Iawad said: 'This is half of knowledge, because the world is land and sea. I have told you about the sea so there remains the land.’”