Sayyiduna Atiyyah al-Qurazi (may Allah be pleased with him), who was a man of Banu Qurayzah, related that the Companions of the Messenger of Allah (peace and blessings be upon him) removed my clothes, and they saw that the hair had not yet been shaved with a razor, so they did not kill me.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحجر / 11318