Sunan an Nasai
3430
Sahih+2

It was narrated that 'Atiyyah Al-Qurazi said:"On the day that Sa'd passed judgment on Banu Quraizah I was a young boy and they were not sure about me, but they did not find any pubic hair, so they let me live, and here I am among you

SahihAbu Ghuddah
SahihAl-Albani