المنزلة بين المنزلتين
A status between two statuses.
A well-known Muʿtazilite teaching assigns the perpetrator of a grave sin an intermediate status rather than fully classifying that person as a believer or an unbeliever in the relevant theological sense. Further debates concern the afterlife, repentance and the consequences of the classification.
In a well-established Sunni formulation, committing a grave sin does not necessarily extinguish faith itself unless some independent ground of unbelief is present. Sin, moral transgression and the continued existence of faith are analyzed distinctly; the act of committing a grave sin is not by itself an automatic declaration of departure from Islam.
The essential distinction is that the seriousness of a sin does not automatically settle the person's creed or supply certainty about the individual's ultimate fate.