I said to Aisha! Mother, show me the grave of the Messenger of Allah ﷺ and his two Companions (Allah be pleased with them). She showed me three graves which were neither high nor low, but were spread with soft red pebbles in an open space. Abu 'Ali said: It is said that the Messenger of Allah ﷺ is forward, Abu Bakr is near his head and 'Umar is near is feet. His head is at the feet of the Messenger of Allah ﷺ. (Using translation from Abū Dāʾūd 3220)
دَخَلْتُ عَلَى عَائِشَةَ فَقُلْتُ يَا أُمَّاهُ اكْشِفِي لِي عَنْ قَبْرِ النَّبِيِّ ﷺ وَصَاحِبَيْهِ فَكَشَفَتْ لِي عَنْ ثَلَاثَةٍ قُبُورٍ لَا مُشْرِفَةٍ وَلَا لَاطِئَةٍ مَبْطُوحَةٍ بِبَطْحَاءِ الْعَرْصَةِ الْحَمْرَاءِ «فَرَأَيْتُ رَسُولَ اللَّهِ ﷺ مُقَدَّمًا وَأَبَا بَكْرٍ رَأْسُهُ بَيْنَ كَتِفَيِ النَّبِيِّ ﷺ وَعُمَرُ رَأْسُهُ عِنْدَ رِجْلَيِ النَّبِيِّ ﷺ»