Muhammad bin Sirin (may Allah have mercy on him) narrated that Sayyiduna Anas bin Malik (may Allah be pleased with him) went in to Sayyiduna al-Bara' bin Malik (may Allah be pleased with him) while he was reciting poetry, and said to him: My brother, has Allah not taught you something better for you than this? - Musa bin Isma'il added in his narration that al-Bara' said to him: "Do you fear for me that I will die on my bed? By Allah, Allah will not test me with that. I have killed a hundred of the polytheists; some of them I killed on my own, and in the killing of others I took part (with others)."
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 687