Sunan an-Nasa'i, Volume 3, Book 21, Hadith 2025 (DarusSalam) ⓘ
It was narrated from Sulaiman Ash-Shaibani from Ash-Sha'bi: "Some people passed by an isolated grave with the Messenger of Allah and he led them in prayer and they formed rows behind him." I said: "Who was that O Abu 'Amr?" He said: "Ibn 'Abbas."
أَخْبَرَنَا إِسْمَاعِيلُ بْنُ مَسْعُودٍ، قَالَ حَدَّثَنَا خَالِدٌ، عَنْ شُعْبَةَ، عَنْ سُلَيْمَانَ الشَّيْبَانِيِّ، عَنِ الشَّعْبِيِّ، : أَخْبَرَنِي مَنْ، مَرَّ مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم عَلَى قَبْرٍ مُنْتَبِذٍ، فَأَمَّهُمْ وَصَفَّ خَلْفَهُ، قُلْتُ : مَنْ هُوَ يَا أَبَا عَمْرٍو قَالَ : ابْنُ عَبَّاسٍ .
also referenced under: Hadith 2023 (Reference) & Book 21, Hadith 207 (In-Book)