It wasnarrated from 'Abdullah bin 'Umar that the Messenger of Allah(ﷺ) said:
"Two kinds of dead meat and two kinds of blood havebeenpermitted to us. The two kinds of dead meat are fish andlocusts, andthe two kinds of blood are the liver and spleen."
English reference: Vol. 4, Book 29, Hadith 3314
Arabic reference: Book 29, Hadith 3439