“Masaail of the Hair” is the compilation of Islamic Laws of Hair and Nails, which helps us to offer Salaat correctly. Most of the modern & fashionable persons violate the laws and limitations put by Allah regarding the hair (eyebrows, heads, beard, Moustache etc.) and nails of hand and foot. One who does not trim hair and cut their nails, offers (Makroh) Namaz. For the easiness of the readers, the book has been compiled in the questionnaire forms and also explain different Masails.