Muhammad bin Harb al-Wasti محمد بن حرب بن حرمان النشائي · The Book of Funerals

"We were with 'Umar between Makkah and Al-Madinah, when he strted to tell us about the people of Badr. He said: The Messenger of Allah showed us the day before where they (the disbelivers) would fall. He said: This is the place where so-and-so will fall tomorrow, if Allah wills.' 'Umar said: 'By the One Who sent him with the truth! They did not miss those places, They were placed in a well and the Prophet came to them and…