Reply To: Source for Upsherins

As far as I could tell from various sources, the only mekor for the minhag is that the Ari Z”L cut his sons hair on Lag B’Omer in Meron. Hence it’s as much of a minhag as mezinka.

It’s funny how seriously people take it these days, as if there’s some sort of lav d’Orayso for cutting hair before 3. There’s literally no mekor for the three year old thing.