Sunan an-Nasa'i, Book 21, Hadith 245 (In-Book) ⓘ
It was narrated that Abu Hurairah said: "I heard the Messenger of Allah after that seeking refuge with Allah from the torment of the grave."
أَخْبَرَنَا عَمْرُو بْنُ سَوَّادِ بْنِ الأَسْوَدِ بْنِ عَمْرٍو، عَنِ ابْنِ وَهْبٍ، قَالَ حَدَّثَنَا يُونُسُ بْنُ يَزِيدَ، عَنِ ابْنِ شِهَابٍ، عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم بَعْدَ ذَلِكَ يَسْتَعِيذُ مِنْ عَذَابِ الْقَبْرِ .
also referenced under: Hadith 2061 (Reference) & Volume 3, Book 21, Hadith 2063 (DarusSalam)