Guaranteed Heaven For Muslims
It is a well known fact that one who believes in God and the hereafter and has not committed any major sin will go to heaven.
God had told us in the Qur’an that the one who violated the Hudood of God will face eternal hell, no matter whether he is a Muslim. See the punishment of Murderer and usurper of the property of others. See verses 4.93, 4.14