Hazrat Simak bin Harb narrates from a person who was called Nabi, he said that Qais came to Hazrat Ali (may Allah be pleased with him) and prostrated to him. He stopped him from this and said, "Prostrate to Allah Almighty." The narrator said that people said to him, "Ask when will the Day of Judgment be established?" So Hazrat Ali (may Allah be pleased with him) said, "You have asked me about something which neither Hazrat Jibreel knows nor Mikaeel, but I will tell you about such things that when they happen, then there will not be much time left for the Day of Judgment: when tongues will be soft and hearts will be like spears, and people will desire the world, and buildings will appear on the earth, there will be discord among brothers and their opinions will differ, and Allah's command will be sold."