Many brothers often discuss a few points with me through emails or online chat. Here is an email I got from one of these brothers, which contains information on unshorn hair in Vedic religious books:
1. Rigveda: All the Gandhrav people had unshorn hair. Hair is divine blessing.
2. The mythical gods of sun, water, medicine, vegetation etc have unshorn hair.
3. The mythical Hindu god Inder has unshorn hair and it is the hair that gives him real strength.
4. In the Rig-Veda, there is a prayer; made by the Brahmins that asks the people to seek from God the gift of long hair.
5. According to Manu all Hindus must wear a turban donned on his head.
6. According to the Valmiki Ramayna, Ravana had long hair. Ravana‘s companions were deeply pained when Jatau pulled Ravana‘s hair.
7. Muni Sukdev, who used to give sermons to the council of the kings, had unshorn hair.
8. King Virat had unshorn hair
9. Durbhasha Rishi too had long unshorn hair and beard.
12. According to the commandments of Brahmi Sahinta (Bhavikhat Puran) “only those who have unshorn hair have a right to be rulers of the land.”
13. Dharam Shastra forbids the Sanyasis from cutting their hair.
14. According to Dharam Sahinta cohabiting partner should not touch the hair of each other while making love, in order to preserve the sanctity of their hair.
15. According to Ketya Samriti one should always cover one’s hair while taking meals
19. The Hindu sociologist Manu says that if a Brahmin commits an act of sin his hair should be shaved off. It is more than hanging him.
20. According to Manu it is a sin to touch the hair of an opponent even while fighting.