Musannaf Ibn Abi Shayba 34:255

Yazid and al-Sahmi narrated to us, from Humayd, from Anas, from the Prophet, peace and blessings of Allah be upon him, who said: "The first of the signs of the Hour is a fire that will gather the people from the East to the West." "As for the first food that the people of Paradise will eat, it is the caudate lobe of a whale's liver."