It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that once I came to the Prophet (peace and blessings be upon him) from behind him. I saw the Prophet (peace and blessings be upon him) in the state of prostration, and at that time the Prophet (peace and blessings be upon him) had separated his arms from his sides and spread them out, so I saw the whiteness of the blessed armpits of the Prophet (peace and blessings be upon him).