Sayyiduna Atiyyah al-Qurazi (may Allah be pleased with him) said: On the day of Banu Qurayzah, I was among those presented before the Prophet (peace and blessings be upon him). They were in doubt about me, so they examined my pubic area; the hair had not grown, so I was let go.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14510