وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ يَحْيَى بْنِ سَعِيدٍ، أَنَّهُ قَالَ سَمِعْتُ سَعِيدَ بْنَ الْمُسَيَّبِ، يَقُولُ صَلَّيْتُ وَرَاءَ أَبِي هُرَيْرَةَ عَلَى صَبِيٍّ لَمْ يَعْمَلْ خَطِيئَةً قَطُّ فَسَمِعْتُهُ يَقُولُ اللَّهُمَّ أَعِذْهُ مِنْ عَذَابِ الْقَبْرِ ‏.‏

Yahya related to me from Malik that Yahya ibn Said said that heheard Said ibn al-Musayyab say, "I once prayed behind Abu Hurayra overa child who had never done a wrong action and I heard him say, 'OAllah, give him protection from the torment of the grave.' " Translation Not Available

Book Ref: Muwatta Imam Malik Book 16 Hadith 540
Web Ref:  Muwatta Imam Malik Book 16 Hadith 18