Hadith.288 - Imam Jafar ibn Muhammad Al-Sadiq (as) said:
"Shaving the head outside of Hajj or 'Umrah is a form of humiliation for your enemies and a source of beauty for you."
The meaning of these words the Prophet became apparent, when He described the Khawarij, saying:
"They will exit from the religion as an arrow exits from the bow, and their sign is shaving (the head) completely.