Riyad as-Salihin, Book 18, Hadith 1638 (In-Book)

Ibn 'Umar (May Allah be pleased with them) said: The Messenger of Allah forbade shaving a part of the head.[Al-Bukhari and Muslim].

عن ابن عمر رضي الله عنهما قال‏:‏ نهى رسول الله صلى الله عليه وسلم عن القزع‏.‏ ‏(‏‏(‏متفق عليه‏)‏‏)‏‏.‏

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