Where is there a source for having long payos ,and if there are sources what is the oldest source.?
I am talking about the extra length besides for the halachic necessity.
Like behind the ears or down to the chin.
Olas Yitzchak 292 says it is known from the times of the Rambam even though the Rambam did not hold it was necessary. He brings in the name of the Sefer Shaar HaMitzvos - Rabbi Chaim Vital - Parshas Kedoshim in the name of the Arizal. Ben Ish Chai in his Sefer Ben Ish Chayil says that when Mordechai was Muchtar Binimuso it means long Paiyos.
Question: Why do male Chasidic Jews have the long side curls in their hair?
Answer: The Torah says, "You shall not round off the peyos of your head" (Leviticus 19:27). The word peyos refers to sideburns -- i.e. the hair in front of the ears that extends to underneath the cheekbone which is level with the nose (Talmud - Makkot 20a). The Talmud explains that this law only applies to men, not to women.
Maimonides explains that the prohibition of “rounding” prohibits the removal of sideburns, by razor, tweezers or any other means. Though it is permitted to trim the sideburns, even very close to the skin, using scissors.
Even though sideburns are enough to satisfy the Torah requirement of peyos, many Jews grow their peyos long as a way of emphasizing the commandment (Peyos sounds like pious, right?!), or simply of Jewish identification. Some will curl their peyos, while others while tuck them behind their ear. It’s just a matter of individual taste, or communal custom.
Hair is also a symbol of vanity, a preoccupation of how one looks. The prohibition against cutting off the peyos reminds a person to de-emphasize his looks, and instead depend on intellect and good character. (Rabbi Samson Raphael Hirsch, 19th century Germany)
From a mystical perspective, peyos separate between the front part of the brain which is used for abstract thought that can be used for holiness, and the back part of the brain that governs the body.
With blessings from Jerusalem,
Rabbi Shraga Simmons