Hadith 8:2250
Abu Bakr narrated to us, he said: Abu Usamah narrated to us, from Hisham ibn Urwah, he said: Urwah used to perform Hajj with his young children, and he would strip them [of their sewn garments] at the time of Ihram.
حدثنا أبو بكر قال حدثنا أبو أسامة عن هشام بن عروة قال كان عروة يحج بصبيانه ويجردهم عند الإحرام