It is narrated from the two sons of Qurayzah that on the occasion of the Battle of Banu Qurayzah, we were presented before the Prophet Muhammad (peace be upon him), and it was decided that whoever had grown pubic hair would be killed, and whoever had not grown pubic hair would be let go.
Hadith Referenceمسند احمد / تتمہ مُسْنَدِ الْكُوفِيِّينَ / 19002
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا إسناد ضعيف، كثير بن السائب لا يعرف، وقد اختلف فيه، وقد اضطرب فيه حماد