Musannaf Ibn Abi Shayba 36:258

Malik narrated to us, he said: Ya'qub ibn 'Abd Allah narrated to us, from Ja'far ibn Abi al-Mughirah, from Ibn Abza, who said: On the day of Uhud, Talha and Musafi' from the Banu Shaybah came out to duel Ali. He said: And he named another person. He said: So he killed them, in addition to those he killed among the people. When he descended, he said to Fatimah: "Take the sword, for it is not blameworthy." The Messenger of Allah (peace and blessings of Allah be upon him) said to him: "If you have performed well, then so-and-so the Ansari and so-and-so the Ansari have performed well," until he ran out of breath, or his breath was about to run out.