In daf 41b Tosfos d"h "Hashoso" says that when cutting little children hair - we should be careful to leave thier "peot".
Is there any other place that mentioning "Chalaka" or cutting little
children hair? What is the source for "Chalaka" custom?
Hagay Gellis, Netanya, ISRAEL
See Sharei Teshuvah to Orach Chaim 531 (#7), and Sefer Ta'amei ha'Minhagim (page 9, and footnotes there).