A black man or a black woman used to sweep the mosque and he or she died. The Prophet ﷺ asked about her (or him). He was told that she (or he) had died. He said, "Why did you not inform me? Show me his grave (or her grave)." So he went to her (his) grave and offered her (his) funeral prayer."  

أَنَّ رَجُلاً أَسْوَدَ أَوِ امْرَأَةً سَوْدَاءَ كَانَ يَقُمُّ الْمَسْجِدَ فَمَاتَ فَسَأَلَ النَّبِيُّ ﷺ عَنْهُ فَقَالُوا مَاتَ قَالَ أَفَلاَ كُنْتُمْ آذَنْتُمُونِي بِهِ دُلُّونِي عَلَى قَبْرِهِ أَوْ قَالَ قَبْرِهَا فَأَتَى قَبْرَهُ فَصَلَّى عَلَيْهِ  

A negress (or a youth) used to sweep the mosque. The Prophet ﷺ missed him, and when he asked about him the people told him that he had died. He said: Why have you not informed me ? He said: Lead me to his grave. So they led him and he prayed over him.  

أَنَّ امْرَأَةً سَوْدَاءَ أَوْ رَجُلاً كَانَ يَقُمُّ الْمَسْجِدَ فَفَقَدَهُ النَّبِيُّ ﷺ فَسَأَلَ عَنْهُ فَقِيلَ مَاتَ فَقَالَ أَلاَّ آذَنْتُمُونِي بِهِ قَالَ دُلُّونِي عَلَى قَبْرِهِ فَدَلُّوهُ فَصَلَّى عَلَيْهِ  

A negress (or a youth) used to sweep the mosque. The Prophet ﷺ missed him, and when he asked about him the people told him that he had died. He said: Why have you not informed me ? He said: Lead me to his grave. So they led him and he prayed over him. (Using translation from Abū Dāʾūd 3203)   

أَنَّ امْرَأَةً سَوْدَاءَ أَوْ رَجُلًا كَانَ يَقُمُّ الْمَسْجِدَ فَفَقْدَهُ رَسُولُ اللهِ ﷺ فَسَأَلَ عَنْهُ؟ فَقَالُوا مَاتَ فَقَالَ أَلَا كُنْتُمْ آذَنْتُمُونِي بِهِ قَالُوا إِنَّهُ كَانَ قَالَ فَقَالَ دُلُّونِي عَلَى قَبْرِهِ فَدَلُّوهُ فَأَتَى قَبْرَهُ فَصَلَّى عَلَيْهِ  

[Machine] A black woman used to attend the mosque regularly, but when she died, the Prophet (PBUH) missed her. He asked about her after a few days and was informed that she had died. He said, "Why didn't you inform me?" He then went to her grave and prayed for her. Ibn Abda added in his narration that Hammad informed him that Thabit said, "The Messenger of Allah (PBUH) said, 'These graves are filled with darkness for their inhabitants, but Allah illuminates them with my prayers upon them.'"  

أَنَّ امْرَأَةً سَوْدَاءَ كَانَتْ تَقُمُّ الْمَسْجِدَ فَمَاتَتْ فَفَقَدَهَا النَّبِيُّ ﷺ فَسَأَلَ عَنْهَا بَعْدَ أَيَّامٍ فَقِيلَ لَهُ إِنَّهَا مَاتَتْ فَقَالَ هَلَّا كُنْتُمْ آذَنْتُمُونِي فَأَتَى قَبْرَهَا فَصَلَّى عَلَيْهَا زَادَ ابْنُ عَبْدَةَ فِي حَدِيثِهِ قَالَ وَأَنْبَأَ حَمَّادٌ ثنا ثَابِتٌ قَالَ قَالَ رَسُولُ اللهِ ﷺ إِنَّ هَذِهِ الْقُبُورَ مَمْلُوءَةٌ ظُلْمَةً عَلَى أَهْلِهَا وَإِنَّ اللهَ ﷻ يُنَوِّرُهَا بِصَلَاتِي عَلَيْهَا