https://abukhadeejah.com/the-prohibition-of-qaza-hairstyle-disallowed-by-allahs-messenger/
The Prohibition of Al-Qaza' ― A Type of Hairstyle Disallowed by Allah's Messenger Where a Part of the Head is Shaved and Other Parts are Left Long... Imitating the Styles and Fashions of the Unbelievers.