Q: I heard that one needs to be pure for Salaah (prayer). Do I need to have Ghusl (ritual full-body bath) to perform it or is Wudhu alone sufficient?
A: For salaah one needs to have wudhu. However, if one was na-paak (impure) then a ghusl is necessary. A man becomes na-paak if he had a discharge of of semen (sperm). In this case, in order to become clean or paak, he must have a complete bath (ghusl). Only then can he offer his salaah.