Abu al-Aswad said: I heard Sayyiduna Abu Bakrah (may Allah be pleased with him) say: "That I should fall from the sky and be torn to pieces is dearer to me than that I should have had a share in the blood of Uthman (may Allah be pleased with him)."
Hadith Referenceالمعجم الكبير للطبراني / العشرة / 131