Abu al-Qasim, may the Compassionate Lord be pleased with you! May I inform you about the feast arranged in honour of the people of Paradise on the Day of Resurrection? He said: Do it, of course. He said: The earth would become one single bread. Then Allah's Messenger (ﷺ) looked towards us and laughed until his molar teeth became visible. He then again said: May I inform you about that with which they would season it? He said: Do it, of course. He said: Their seasoning would be balim and fish. The Companions of the Prophet (ﷺ) said: What is this balam? He said: Ox and fish from whose excessive livers seventy thousand people would be able to eat.
Sahih Muslim Book 52, Hadith 13