One day the Messenger of Allah ﷺ went out and prayed over the martyrs of Uhud like his prayer over the dead, and then returned.  

أَنَّ رَسُولَ اللَّهِ ﷺ خَرَجَ يَوْمًا فَصَلَّى عَلَى أَهْلِ أُحُدٍ صَلاَتَهُ عَلَى الْمَيِّتِ ثُمَّ انْصَرَفَ  

The Prophet ﷺ prayed over the martyrs of Uhud after eight years like a man who bids farewell to the living and dead.  

إِنَّ النَّبِيَّ ﷺ صَلَّى عَلَى قَتْلَى أُحُدٍ بَعْدَ ثَمَانِ سِنِينَ كَالْمُوَدِّعِ لِلأَحْيَاءِ وَالأَمْوَاتِ