Mujahid (may Allah have mercy on him) relates that a man came to Sayyiduna Ibn Umar (may Allah be pleased with them both) and asked: "What do you say about Sayyiduna Ali (may Allah be pleased with him)?" He said: "Look, there is his house." He asked: "Then what do you say about Sayyiduna Uthman (may Allah be pleased with him)?" He replied: "What should I say about a man who committed a fault between himself and Allah, and Allah forgave him; and committed a fault between you and himself, and you killed him?"
No one narrated this hadith from Mujahid (may Allah have mercy on him) except Mujalid (may Allah have mercy on him), and no one from Mujalid (may Allah have mercy on him) except Abu Bakr bin Ayyash (may Allah have mercy on him), while Yazid bin Mihran (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الألف / 555
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 13533»