Hadith 4193
Narrated Ibn Umar: The Messenger of Allah ﷺ forbade qaza'. Qaza' means having part of a boy's head shaved and leaving part unshaven.
Hadith 4194
Narrated Abdullah ibn Umar: the Prophet ﷺ forbade qaza' which means that the head of a boy is shaved and a lock is left.
Hadith 4195
Narrated Abdullah ibn Umar: The Prophet ﷺ saw a boy with part of his head shaved and part left unshaven. He forbade them to do that, saying: Shave it all or leave it all.