Musannaf Ibn Abi Shaybah 33967 — What Allah the Exalted gave Muhammad

Sayyiduna Habib bin Fuwayk (may Allah be pleased with him) said that his father took him to the Messenger of Allah (peace and blessings be upon him) while his eyes had turned white and he could not see anything with them. He asked him: "What has happened to you?" He said: "I was training my horse when my foot landed on a snake's eggs, and my eye was affected by it." The Messenger of Allah (peace and blessings be upon him) blew into his eyes and he began to see. He said: I saw him threading a needle at the age of eighty, while his eyes were white.