Anas b. Malik reported: We were along with Umar between Mecca and Medina that we began to look for the new moon. And I was a man with sharp eye- sight, so I could see it, but none except me saw it. I began to say to 'Umar: Don't you see it? But he would not see it. Thereupon Umar said: I would soon be able to see it (when it will shine more brightly). I lay upon bed. He then made a mention of the people of Badr to us and said: Messenger of Allah ﷺ showed us one day before (the actual battle) the place of death of the people (participating) in (the Battle) of Badr and he was saying: This would be the place of death of so and so tomorrow, if Allah wills. Umar said: By Him Who sent him with truth, they did not miss the places (of their death) which Messenger of Allah ﷺ had pointed for them. Then they were all thrown in a well one after another. Messenger of Allah ﷺ then went to them and said: O, so and so, the son of so and so;
O so and so, the son of so and so, have you found correct what Allah and His Messenger had promised you? I have, however, found absolutely true what Allah had promised with me. Umar said: Allah's Messenger, how are you talking with the bodies without soul in them. Thereupon he said: You cannot hear more distinctly than (their hearing) of what I say, but with this exception that they have not power to make any reply.

حَدَّثَنِي إِسْحَاقُ بْنُ عُمَرَ بْنِ سَلِيطٍ الْهُذَلِيُّ، حَدَّثَنَا سُلَيْمَانُ بْنُ الْمُغِيرَةِ، عَنْ ثَابِتٍ، قَالَ قَالَ أَنَسٌ كُنْتُ مَعَ عُمَرَ ح وَحَدَّثَنَا شَيْبَانُ بْنُ فَرُّوخَ، - وَاللَّفْظُ لَهُ - حَدَّثَنَا سُلَيْمَانُ بْنُ الْمُغِيرَةِ، عَنْ ثَابِتٍ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ كُنَّا مَعَ عُمَرَ بَيْنَ مَكَّةَ وَالْمَدِينَةِ فَتَرَاءَيْنَا الْهِلاَلَ وَكُنْتُ رَجُلاً حَدِيدَ الْبَصَرِ فَرَأَيْتُهُ وَلَيْسَ أَحَدٌ يَزْعُمُ أَنَّهُ رَآهُ غَيْرِي - قَالَ - فَجَعَلْتُ أَقُولُ لِعُمَرَ أَمَا تَرَاهُ فَجَعَلَ لاَ يَرَاهُ - قَالَ - يَقُولُ عُمَرُ سَأَرَاهُ وَأَنَا مُسْتَلْقٍ عَلَى فِرَاشِي . ثُمَّ أَنْشَأَ يُحَدِّثُنَا عَنْ أَهْلِ بَدْرٍ فَقَالَ إِنَّ رَسُولَ اللَّهِ ﷺ كَانَ يُرِينَا مَصَارِعَ أَهْلِ بَدْرِ بِالأَمْسِ يَقُولُ " هَذَا مَصْرَعُ فُلاَنٍ غَدًا إِنْ شَاءَ اللَّهُ " . قَالَ فَقَالَ عُمَرُ فَوَالَّذِي بَعَثَهُ بِالْحَقِّ مَا أَخْطَئُوا الْحُدُودَ الَّتِي حَدَّ رَسُولُ اللَّهِ ﷺ - قَالَ - فَجُعِلُوا فِي بِئْرٍ بَعْضُهُمْ عَلَى بَعْضٍ فَانْطَلَقَ رَسُولُ اللَّهِ ﷺ حَتَّى انْتَهَى إِلَيْهِمْ فَقَالَ " يَا فُلاَنَ بْنَ فُلاَنٍ وَيَا فُلاَنَ بْنَ فُلاَنٍ هَلْ وَجَدْتُمْ مَا وَعَدَكُمُ اللَّهُ وَرَسُولُهُ حَقًّا فَإِنِّي قَدْ وَجَدْتُ مَا وَعَدَنِيَ اللَّهُ حَقًّا " . قَالَ عُمَرُ يَا رَسُولَ اللَّهِ كَيْفَ تُكَلِّمُ أَجْسَادًا لاَ أَرْوَاحَ فِيهَا قَالَ " مَا أَنْتُمْ بِأَسْمَعَ لِمَا أَقُولُ مِنْهُمْ غَيْرَ أَنَّهُمْ لاَ يَسْتَطِيعُونَ أَنْ يَرُدُّوا عَلَىَّ شَيْئًا " .