(14) باب فِي الذُّؤَابَةِ
Narrated Abdullah ibn Umar:
the Prophet (ﷺ) forbade qaza' which means that the head of a boy is shaved and a lock is left. (RU)
Reference (RU): Sunan Abi Dawud 4194 (RU)
In-book reference (RU): Book 35, Hadith 36 (RU)
English translation (RU): Book 34, Hadith 4182 (RU)