(1) باب المياه
Narrated Ibn 'Umar:
Narrated Ibn 'Umar (rad): Allah's Messenger (ﷺ) said: "Two types of dead animals and two types of bloods have been made lawful for us, the two types of dead animals are locusts and fish (seafood), while the two types of bloods are the liver and the spleen". [Reported by Ahmad and Ibn Majah, and this Hadith has some weakness.]
Reference: Bulugh al-Maram 13
In-book reference: Book 1, Hadith 16
English translation: Book 1, Hadith 15