It was narrated that Anas said:

"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 called out: O so-and-so, son of so-and-so! O so-and-so, son of so-andso! Have you found what your Lord promised to be true? Of I have found what allah promised me to be true. 'Umar said: 'Are you speaking to bodies in which there are no souls?' He said: 'You do not hear what I say any better than they do."'

أَخْبَرَنَا عَمْرُو بْنُ عَلِيٍّ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا سُلَيْمَانُ، - وَهُوَ ابْنُ الْمُغِيرَةِ - قَالَ حَدَّثَنَا ثَابِتٌ، عَنْ أَنَسٍ، قَالَ كُنَّا مَعَ عُمَرَ بَيْنَ مَكَّةَ وَالْمَدِينَةِ أَخَذَ يُحَدِّثُنَا عَنْ أَهْلِ بَدْرٍ فَقَالَ إِنَّ رَسُولَ اللَّهِ ﷺ لَيُرِينَا مَصَارِعَهُمْ بِالأَمْسِ قَالَ " هَذَا مَصْرَعُ فُلاَنٍ إِنْ شَاءَ اللَّهُ غَدًا " . قَالَ عُمَرُ وَالَّذِي بَعَثَهُ بِالْحَقِّ مَا أَخْطَئُوا تِيكَ فَجُعِلُوا فِي بِئْرٍ فَأَتَاهُمُ النَّبِيُّ ﷺ فَنَادَى " يَا فُلاَنُ بْنَ فُلاَنٍ يَا فُلاَنُ بْنَ فُلاَنٍ هَلْ وَجَدْتُمْ مَا وَعَدَ رَبُّكُمْ حَقًّا فَإِنِّي وَجَدْتُ مَا وَعَدَنِي اللَّهُ حَقًّا " . فَقَالَ عُمَرُ تُكَلِّمُ أَجْسَادًا لاَ أَرْوَاحَ فِيهَا فَقَالَ " مَا أَنْتُمْ بِأَسْمَعَ لِمَا أَقُولُ مِنْهُمْ " .