Tafsir: Ahlus-Sunnah (The People of the Sunnah, or traditions & practice of the Holy Nabi Muhammad, may Allah’s Peace and Blessings be upon him.) does not remove someone from Al-Islam because he committed a sin, but the Khariji say the person becomes a kafir (disbeliever). The Mu’tazila say the person will be out of Islam, but still be Muslim. If a person commits such an act which is a sign of kafir (wearing crosses, sajda to idols, etc.) then he will be out of Islam, but if someone says something that has one hundred meanings and ninety-nine are kafir and one is Islam, then we must take the one meaning unless he’s referring to any of the ninety-nine.
Question: What other kinds of sin are there, and how are they forgiven? Kabirat is that which Shari’ah has strictly forbidden. And the punishment for that in this dunya is haad or ta’zirat or the punishment will come in Akheel. Kabirat pertains to that which is not forgiven, until a person makes tawba (repentance). Gumara sajira, or it’s called tharaba sajira, is forgiven through practicing of good deeds. If one commits tharaba sajira continuously, it becomes tharaba kabira.