Musannaf Ibn Abi Shaybah 34419 — Reports on Ammar bin Yasir

Sayyiduna Ali (may Allah be pleased with him) said: We were sitting with the Prophet (peace and blessings be upon him) when Sayyiduna Ammar bin Yasir (may Allah be pleased with him) asked permission to come in. He (peace and blessings be upon him) said: "Give him permission. Welcome to the person of pure nature."