Sunday Iyar 4, 19th day of the omer 5703
Torah lessons: Chumash: Emor, first parsha with Rashi.
Tehillim: 23-28.
Tanya: Ch. 46. There is yet (p. 241) for him. (p. 241).

It is a Jewish custom not to shave or cut a baby boy's hair until his third birthday.

The first haircutting or opsherenish of a baby boy is a Jewish custom of great importance. The essence of the custom is the educational act of leaving (uncut) the peyot (sidelocks). From the day of the haircutting and leaving the peyot it is the custom to take particular care in accustoming the little boy to wear a tallit katan, to recite the early-morning b'rachot, the grace after meals (birkat hamazon p. 89) and the bedtime sh'ma (p. 118).