Musnad Ahmad 1060:72

Musa ibn Dawud narrated to us, Ibn Lahi'ah narrated to us, from Yazid ibn Abi Habib, that Aslam Abu Imran narrated to them that he heard Abu Ayyub saying: We formed ranks on the day of Badr, and a group of us rushed ahead of the rank. The Prophet, peace and blessings of Allah be upon him, looked at them and said: "With me, with me."