Narrated by:Ibn 'Abbas and Al-Hasan bin 'Ali that
It was narrated from Ibn 'Abbas and Al-Hasan bin 'Ali that:a funeral passed by them and one of them stood and the other sat. The one who stood up said: "By Allah, I know that the Messnger of Allah stood up." The one who was sitting said: "I know that the Messenger of Allah sat."
أَخْبَرَنَا يَعْقُوبُ بْنُ إِبْرَاهِيمَ، عَنِ ابْنِ عُلَيَّةَ، عَنْ سُلَيْمَانَ التَّيْمِيِّ، عَنْ أَبِي مِجْلَزٍ، عَنِ ابْنِ عَبَّاسٍ، وَالْحَسَنِ بْنِ عَلِيٍّ، مَرَّتْ بِهِمَا جَنَازَةٌ فَقَامَ أَحَدُهُمَا وَقَعَدَ الآخَرُ فَقَالَ الَّذِي قَامَ أَمَا وَاللَّهِ لَقَدْ عَلِمْتُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَدْ قَامَ قَالَ لَهُ الَّذِي جَلَسَ لَقَدْ عَلِمْتُ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَدْ جَلَسَ .
Nesai
The Book of Funerals • Hadith 1926