Musannaf Ibn Abi Shaybah

Hazrat Atiyyah bin Saeed (may Allah have mercy on him) narrates that we went to the service of Hazrat Jabir bin Abdullah (may Allah be pleased with him) at a time when he was very old and his eyelashes were drooping over his eyes. The narrator says: I said to him, "Please tell us about that person, i.e., Hazrat Ali (may Allah be pleased with him) bin Abi Talib (may Allah be pleased with him)." So he (may Allah be pleased with him) lifted both his eyelids with his hand and then said: "He is indeed the best of mankind."