My father told me that the Companions of the Prophet ﷺ did not know where to bury the Prophet ﷺ until Abu Bakr said: I heard the Messenger of Allah ﷺ say: ʿA Prophet is not to be buried except where he died.” So they removed his bed and dug a grave for him beneath
أَخْبَرَنِي أَبِيأَنَّ أَصْحَابَ النَّبِيِّ ﷺ لَمْ يَدْرُوا أَيْنَ يَقْبُرُونَ النَّبِيَّ ﷺ حَتَّى قَالَ أَبُو بَكْرٍ سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ لَنْ يُقْبَرَ نَبِيٌّ إِلَّاحَيْثُ يَمُوتُ فَأَخَّرُوا فِرَاشَهُ وَحَفَرُوا لَهُ تَحْتَ فِرَاشِهِ