The Book of Adornment
48/58. Chapter:
Mentioning the Prohibition of Shaving Part of a Boy's Head and Leaving Part
Sunan an-Nasai
أَخْبَرَنَا مُحَمَّدُ بْنُ بَشَّارٍ، قَالَ حَدَّثَنَا يَحْيَى، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، قَالَ أَخْبَرَنِي عُمَرُ بْنُ نَافِعٍ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ النَّبِيَّ صلى الله عليه وسلم نَهَى عَنِ الْقَزَعِ .
It was narrated from Ibn 'Umar that : The Prophet [SAW] forbade Al-Qaza' (shaving part of the head and leaving part)."
Reference : Sunan an-Nasa'i 5231In-book reference : Book 48, Hadith 192English translation : Vol. 6, Book 48, Hadith 5233