Mukhtasar Muslim (Abridged) 1382 — Prohibition of shaving part

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) forbade qaza'. The narrator said: I asked Nafi' what qaza' is. He said: Shaving part of a child's head and leaving part of it.