Musannaf Ibn Abi Shayba 37:438

Waki’ narrated to us, from Sufyan, from Simak, from a man who is called Bani (Nabi), he said: Qays came to Ali and prostrated to him, so he forbade him and said: "Prostrate to Allah." He said: Then he said: "Ask him when the Hour is." He said: "You have asked me about a matter that neither Jibril nor Mika'il knows. But if you wish, I will inform you of things, that if they occur, the Hour will not have much delay: when tongues are soft, hearts are like meteors (hard/fiery), people desire the world, construction appears on the face of the earth, brothers differ so their desires become diverse, and the judgment of Allah is sold as a sale."