- The gravest sin is associating partners with Allah, as he puts it at the forefront of the major sins and the greatest one among them. This is confirmed by the verse: {Allah does not forgive associating partners with Him, but forgives anything less than that for whom He wills. Whoever associates partners with Allah has indeed committed a grave sin.}
- The rights of parents are significant, as he coupled them with the rights of Allah Almighty.
- Sins are divided into major and minor. Major sins are every sin that entails a worldly penalty, like the prescribed punishments and curses, or a threat regarding the Hereafter, such as the threat of entering Hellfire. There are different levels of major sins, some of which are more severe than others in terms of prohibition. Minor sins are the sins other than the major ones.