Musannaf Ibn Abi Shaybah 26684 — Those who left their beards white

Al-Ahnaf bin Qays relates; he said: I came to Madinah and entered the Prophet's Mosque. While I was praying, a tall, brown-complexioned man came in whose beard was white and whose head was shaved, and one part of him resembled another. Then he went out and I followed him. I asked: Who is this? The people said: Sayyiduna Abu Dharr (may Allah be pleased with him).