'Remove the hair you have grown while you were a Kafir and circumcise yourself.'(Abu Dawood) b. When a child is seven days old. The Prophet () said:
'Every child is to be ransomed by his Aqeeqah, which is to be slaughtered after the seventh day (from the day he was born). In it (i.e. the seventh day) he is to be named, and his hair removed.'(Irwaa al-Ghaleel) c. If one's hair grows beyond normal bounds.
d.If the man is a source of Fitnah, and this fitnah will end by removing the hair.
*It is best that the hair be parted. The Prophet () did this towards the end of his life. The People of the Book would let their hair grow and not part it. The polytheists, on the other hand, used to part their hair. At first the Prophet () let his hair grow and did not part it, afterwards he parted his hair.
*If one's hair grows very long, he can braid it into two braids.
*It is praiseworthy that one's hairstyle be similar to the Prophet's hairstyle.
*One may grow his hair so that it reaches his earlobes, and at the most one may grow his hair so that it reaches his shoulders.
*It is unlawful for one to shorten his hair unevenly. Abdullah b. Umar () reported that the Prophet () forbade shortening the hair in the Qaz' fashion (i.e. uneven). This will lead one to imitate the non-believers and the Prophet () said: