Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with him) that a man passed by the Noble Prophet (peace and blessings be upon him) while he was urinating, and the man greeted him with salam. The Prophet (peace and blessings be upon him) said: "When you find me in this state, do not greet me with salam. If you do so again in the future, I will not reply to your salam."