It is narrated from Simak bin Harb (may Allah have mercy on him), he says: I heard from Sayyiduna Jabir bin Samurah (may Allah be pleased with him), he was asked about the white hair of the Messenger of Allah (peace and blessings be upon him), so he said: When the Messenger of Allah (peace and blessings be upon him) applied oil, his old age was not apparent, and when he did not apply oil, then some (white hair) could be seen from him.