Do committing masturbation and missing prayers lead to apostasy? And does returning to Islam require ghusl and uttering the Two Testimonies, or are repentance and prayer sufficient? Is it sufficient to utter the Two Testimonies during prayer? What is the ruling on one who intentionally prays in a state of major ritual impurity, knowing it is forbidden but ignorant of the punishment?

Masturbation is a sin from which one must repent. Abandoning prayer is a grave crime, and Islamic law has called it disbelief (kufr). Some scholars consider one who abandons it out of laziness to be a disbeliever, while the majority view is that one does not leave the fold of Islam merely by abandoning it. An apostate returns to Islam simply by praying, and it suffices for him to utter the two declarations of faith (Shahadatayn) during the Tashahhud. The prayer of a Muslim while in a state of ritual impurity (junub) is a major sin from which one must repent and repeat the prayer.