Sahih Muslim — Hadith #13566

(…) Qutaybah ibn Sa’id and Abu Bakr ibn Abu Shaybah (may Allah be pleased with them) ..... Narrated Amir ibn Sa’d ibn Abi Waqqas (may Allah be pleased with him). He said, “I wrote to Jabir ibn Samurah through my slave Nafi’ asking him to inform me of a hadith that he had heard from the Messenger of Allah (peace and blessings of Allah be upon him). He said, “Then he wrote to me, ‘I heard the Messenger of Allah (peace and blessings of Allah be upon him) say, “I will be your leader at the pool.”’” (Islamic Foundation 5798, Islamic Center)