It was narrated from ‘Abdullah bin ‘Umar that the Messenger of Allah (ﷺ) said:
“Two kinds of dead meat and two kinds of blood have been permitted to us. The two kinds of dead meat are (dead) fish and (dead) locusts, and the two kinds of blood are the liver and spleen.”
حَدَّثَنَا أَبُو مُصْعَبٍ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ زَيْدِ بْنِ أَسْلَمَ، عَنْ أَبِيهِ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ قَالَ “ أُحِلَّتْ لَنَا مَيْتَتَانِ وَدَمَانِ فَأَمَّا الْمَيْتَتَانِ فَالْحُوتُ وَالْجَرَادُ وَأَمَّا الدَّمَانِ فَالْكَبِدُ وَالطِّحَالُ ” .
Reference : Sunan Ibn Majah 3314
In-book reference : Book 29, Hadith 64
English translation : Vol. 4, Book 29, Hadith 3314