According to the language, bath (al-ghuslu) means: drain the water on anything. According to syara ', it means: to drain water on the body with certain intentions. Mandi has been disyari'atkan religion, for the sake of hygiene and to deprive the hadats, as a condition of worship or not.
As for the consent of the bath, then the Mujtahidin priests have agreed, that bathing for purity is mustahab, while bathing for the legitimacy of worship is obligatory. And in this case it is never known that anyone is different.
Inside this application there are the types of obligatory bath and sunnah and the procedure of its implementation in Islam. Hopefully this Mandatory Guide to the Sunnah and Sunnah are useful for the Muslims to know the rules of mandatory bath and circumcision in Islam