حَدَّثَنَا عَبْدُ الْوَهَّابِ الثَّقَفِيُّ عَنْ أَيُّوبَ عَنْ مُحَمَّدٍ أَنَّ الْحَسَنَ بْنَ عَلِيٍّ وَابْنَ عَبَّاسٍ رَأَيَا جَنَازَةً فَقَامَ أَحَدُهُمَا وَقَعَدَ الْآخَرُ فَقَالَ الَّذِي قَامَ أَلَمْ يَقُمْ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَقَالَ الَّذِي قَعَدَ بَلَى وَقَعَدَ
مسند امام احمد بن حنبل · Hadith 1729
It was narrated from Muhammad that al-Hasan bin Ali and Ibn 'Abbas saw a funeral; one of them stood up and the other remained seated. The one who stood up said: Didn't the Messenger of Allah (PBUH) stand up? The one who remained seated and said: Yes, and he remained seated (sometimes).
Sanad
حَدَّثَنَا عَبْدُ الْوَهَّابِ الثَّقَفِيُّ عَنْ أَيُّوبَ عَنْ مُحَمَّدٍ