Sayyiduna Atiyyah al-Qurazi (may Allah be pleased with him) said: I was among those about whom Sa'd (may Allah be pleased with him) had given judgement. They were in doubt about me, whether I was among the fighting men or among the children. So they examined my pubic area and hair had not come out there, so they counted me among the children.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14506