The Book of Prayer - Funerals
حَدَّثَنَا شَيْبَانُ بْنُ فَرُّوخَ، حَدَّثَنَا جَرِيرٌ، - يَعْنِي ابْنَ حَازِمٍ - حَدَّثَنَا نَافِعٌ، قَالَ قِيلَ لاِبْنِ عُمَرَ إِنَّ أَبَا هُرَيْرَةَ يَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَنْ تَبِعَ جَنَازَةً فَلَهُ قِيرَاطٌ مِنَ الأَجْرِ " . فَقَالَ ابْنُ عُمَرَ أَكْثَرَ عَلَيْنَا أَبُو هُرَيْرَةَ . فَبَعَثَ إِلَى عَائِشَةَ فَسَأَلَهَا فَصَدَّقَتْ أَبَا هُرَيْرَةَ فَقَالَ ابْنُ عُمَرَ لَقَدْ فَرَّطْنَا فِي قَرَارِيطَ كَثِيرَةٍ .Nafi' narrated that it was said to Ibn 'Umar that Abu Huraira reported to have heard Allah's Messenger (ﷺ) as saying:He who follows the bier, for him is the reward of one qirat. Ibn 'Umar said: Abu Huraira narrated it too often. So he sent (a messenger to) 'A'isha to ascertain (the fact). She ('A'isha) testified Abu Huraira. Ibn 'Umar said: We missed so many qirats
From Sahih Muslim, whose reports the scholars accept as authentic.