Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) went in to al-Hajjaj while leaning on someone's hand, and he said to him: the Prophet (peace and blessings be upon him) said concerning the Ansar: "Treat the good among them well, and pardon the wrongdoers among them." He asked: Who will bear witness for you to this? He said: These two on either side of you: Abdullah bin Ja'far and Ibrahim bin Muhammad bin Talhah. So the two of them said: Yes.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13795