It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) led them in the Zuhr prayer. After concluding the prayer with salam, he sat on the pulpit and mentioned the Day of Resurrection. He (peace be upon him) stated, "Great calamities will occur in it," then said: "Whoever wants to ask me about anything, let him ask. By Allah! As long as I am present in this place, whatever you ask me about, I will tell you." Sayyiduna Anas (may Allah be pleased with him) says: When people heard this from the Messenger of Allah (peace and blessings of Allah be upon him), they wept greatly, and the Messenger of Allah (peace and blessings of Allah be upon him) continued to say: "Ask whatever you wish to ask." After this, Sayyiduna Umar (may Allah be pleased with him) sat on his knees and said: We are pleased with Allah as our Lord, with Islam as our religion, and with Muhammad (peace and blessings of Allah be upon him) as our Messenger. When Sayyiduna Umar (may Allah be pleased with him) said this, the Prophet (peace and blessings of Allah be upon him) became silent. Then the Messenger of Allah (peace and blessings of Allah be upon him) said: "These events are near. Beware, I swear by the One in whose hand is my soul, Paradise and Hell were presented to me on this side of the wall while I was praying. I have never seen as much good and evil as I saw today."