حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا مُحَمَّدُ بْنُ عُبَيْدٍ، حَدَّثَنَا يَزِيدُ بْنُ كَيْسَانَ، عَنْ أَبِي حَازِمٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ زَارَ النَّبِيُّ ـ صلى الله عليه وسلم ـ قَبْرَ أُمِّهِ فَبَكَى وَأَبْكَى مَنْ حَوْلَهُ فَقَالَ: ‏"‏ اسْتَأْذَنْتُ رَبِّي فِي أَنْ أَسْتَغْفِرَ لَهَا فَلَمْ يَأْذَنْ لِي وَاسْتَأْذَنْتُ رَبِّي فِي أَنْ أَزُورَ قَبْرَهَا فَأَذِنَ لِي فَزُورُوا الْقُبُورَ فَإِنَّهَا تُذَكِّرُكُمُ الْمَوْتَ ‏"‏ ‏.‏
Translation
It wasnarrated that Abu Hurairah said

“The Prophet (ﷺ) visitedthegrave of his mother and wept, causing the people around him toweep.Then he said: ‘I asked my Lord for permission to seekforgivenessfor her, but He did not give me permission. Then I askedmy Lord forpermission to visit her grave and He gave me permission.So visit thegraves, for they will remind you of death.’”