Tonsure a part of the rite of "pabbajja" and also a part of becoming a monk (Skt. "Bhikshu") or nun (Skt. "Bhikshuni"). This involves shaving head and face. This tonsure is renewed as often as required to keep the head cleanly shaven. The purification process of the "metzora" (one afflicted with "tzaraath") involved the ritual shaving on the "metzorah's" entire body except for the afflicted locations. And as the term tonsure may be used as a broad description for such hair styling of devotees as a ritual symbol of their renunciation of worldly fashion and esteem, Orthodox Jewish males do not
Tonsure shaving one's hair on some parts of the head while letting it grow on other parts, as in tonsure. However, shaving the head entirely is allowed. The proscription is detailed in the hadith. عَنِ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ – صلى الله عليه وسلم – نَهَى عَنِ الْقَزَعِ From Ibnu 'Umar (he says), the Prophet – peace be upon him – forbids the Qoza‘ (i.e. shaving hair on some parts of the head while let it grow on other parts). Hadith Bukhori V/2214 no.5577 about "Al-Qoza‘", and Hadith Muslim III/1675 no.2120, about "the Proscription of Al-Qoza‘") From Ibnu 'Umar (he