Arabic (Original)
حَدَّثَنَا سُفْيَانُ عَنْ عَبْدِ اللَّهِ بْنِ دِينَارٍ عَنِ ابْنِ عُمَرَ قَالَ كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يُبَايِعُ عَلَى السَّمْعِ وَالطَّاعَةِ ثُمَّ يَقُولُ فِيمَا اسْتَطَعْتَ وَقَالَ مَرَّةً فَيُلَقِّنُ أَحَدَنَا فِيمَا اسْتَطَعْتَ.
English Translation
Sufyan narrated to us, from 'Abdullah ibn Dinar, from Ibn 'Umar, who said: The Prophet, peace and blessings be upon him, used to take the pledge of allegiance on hearing and obeying, then he would say, "As much as you are able," and he said another time: "He would prompt one of us [to add], 'as much as I am able.'"