It was narrated from Anas that:

On the night on which he was taken on the Night Journey, the Prophet ﷺ passed by Musa, peace be upon him, and he was praying in his grave.

أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا مُعْتَمِرٌ، عَنْ أَبِيهِ، عَنْ أَنَسٍ، أَنَّ النَّبِيَّ ﷺ لَيْلَةَ أُسْرِيَ بِهِ مَرَّ عَلَى مُوسَى عَلَيْهِ السَّلاَمُ وَهُوَ يُصَلِّي فِي قَبْرِهِ .