The Messenger of Allah ﷺ said, "Two types of dead creatures and two types of blood have been made lawful for us. As for the two dead creatures, they are fish and Jarad. As for the two bloods, they are the liver and the spleen."
حدثنا سريج حدثنا عبد الرحمن بن زيد بن أسلم عن زيد بن أسلم
قال رسول الله ﷺ أحلت لنا ميتتان ودمان فأما الميتتان فالحوت والجراد وأما الدمان فالكبد والطحال