Musnad Ahmad

Sayyiduna Anas (may Allah be pleased with him) narrates that once we were between Makkah Mukarramah and Madinah Munawwarah with Sayyiduna Umar (may Allah be pleased with him) when the new moon of the first (of the month) appeared to us. My eyesight was sharp, so I said to Sayyiduna Umar (may Allah be pleased with him), “Do you see it?” He replied, “I will look now.” At that time, I was lying flat on the ground. Then Umar (may Allah be pleased with him) began to narrate a hadith regarding the people of Badr: The Prophet (peace and blessings be upon him) showed us, a day before, all the places where the bodies of the disbelievers would fall. The Prophet (peace and blessings be upon him) would point out and say, “Here the body of so-and-so will fall, and insha’Allah, tomorrow so-and-so will be killed here.” And so it happened; they began to fall exactly at the places where the Prophet (peace and blessings be upon him) had said. I said to the Prophet (peace and blessings be upon him), “By the One Who sent you with the truth, they did not deviate even a little from the places you had indicated.” After that, by the order of the Prophet (peace and blessings be upon him), their bodies were dragged and thrown into a well. Then the Prophet (peace and blessings be upon him) went to that well, stood by it, and called each one by name, saying, “Did you find the promise of your Lord to be true or not? I have found the promise of my Lord to be true.” I said, “O Messenger of Allah! Are you speaking to people who are dead?” He replied, “Whatever I am saying to them, you are not hearing any better than they are, except that they cannot reply (and you can reply).”