Anas reported that the Messenger of Allah ﷺ observed prayer on the grave.  

أَنَّ النَّبِيَّ ﷺ صَلَّى عَلَى قَبْرٍ  

[Machine] "That the Messenger of Allah ﷺ prayed for An-Najashi."  

أَنَّ رَسُولَ اللهِ ﷺ صَلَّى عَلَى النَّجَاشِيِّ  

“When Ibn ‘Abbas was in Basrah, he performed prayer on his rug, then he told his companions that the Messenger of Allah ﷺ used to perform prayer on his rug.” (Using translation from Ibn Mājah 1030)   

أَنَّ رَسُولَ اللهِ ﷺ صَلَّى عَلَى بِسَاطٍ  

[Machine] "That the Prophet ﷺ prayed on a mat."  

أَنَّ النَّبِيَّ ﷺ صَلَّى عَلَى حَصِيرٍ  

“When Ibn ‘Abbas was in Basrah, he performed prayer on his rug, then he told his companions that the Messenger of Allah ﷺ used to perform prayer on his rug.” (Using translation from Ibn Mājah 1030)   

أَنَّ رَسُولَ اللهِ ﷺ صَلَّى عَلَى بِسَاطٍ  

Anas reported that the Messenger of Allah ﷺ observed prayer on the grave. (Using translation from Muslim 955)  

أَنَّ النَّبِيَّ ﷺ صَلَّى عَلَى قَبْرٍ  

[Machine] The Prophet ﷺ prayed on a mat.  

أَنَّ النَّبِيَّ ﷺ «صَلَّى عَلَى حَصِيرٍ»  

[Machine] "That the Prophet ﷺ performed prayer in the house."  

«أَنَّ النَّبِيَّ ﷺ صَلَّى فِي الْبَيْتِ»  

[Machine] "That the Prophet ﷺ prayed in his sandals."  

«أَنَّ النَّبِيَّ ﷺ صَلَّى فِي نَعْلَيْهِ»  

[Machine] "The Prophet, ﷺ , prayed in the house."  

«أَنَّ النَّبِيَّ ﷺ صَلَّى فِي الْبَيْتِ»  

[Machine] That the Prophet ﷺ "prayed on a mat"  

أَنَّ النَّبِيَّ ﷺ «صَلَّى عَلَى بِسَاطٍ»  

[Machine] "That the Prophet ﷺ prayed while wearing his sandals."  

أَنَّ النَّبِيَّ ﷺ «صَلَّى فِي نَعْلَيْهِ»  

It was narrated from Ibn Buraidah from his father that the Prophet ﷺ offered the funeral prayer for a deceased person after he had been buried. (Using translation from Ibn Mājah 1532)  

أَنَّ النَّبِيَّ ﷺ «صَلَّى عَلَى مَيِّتٍ بَعْدَ مَا دُفِنَ»  

[Machine] "To pray upon him."  

أَنْ يُصَلُّوا عَلَيْهِ  

"أَنَّ رَسُولَ اللهِ ﷺ صَلَّى عَلَى حَصيرٍ".  

"أَنَّ رَسُولَ الله ﷺ صَلَّى عَلَى بِسَاطٍ".