Quran 2:256 states that there is no compulsion in religion, that right guidance has been made distinct from error, adding that whoever rejects false gods and believes in God has grasped a firm handhold that will not break. Read alone, the verse is among the Quran's plainest statements against forced conversion, and it is regularly cited that way in modern discussion of religious liberty within Islam.
Classical commentators did not all let it stand alone. A body of tafsir developed the doctrine of naskh, abrogation, holding that some later revealed verses supersede earlier ones where the two conflict, and a minority of exegetes argued the sword verses of chapter 9, revealed after 2:256 in the traditional chronology, narrowed or abrogated the no compulsion principle for particular circumstances of war. Other classical scholars rejected that reading outright, holding 2:256 addresses a general and permanent principle about faith's nature, that belief compelled by force is not genuine belief, rather than a specific ruling abrogation could reach.
Modern scholarship, including major contemporary commentary projects, has generally sided with the second reading. The verse is treated as a standing statement about the nature of faith itself, its abrogation by the sword verses considered a minority position within the classical record rather than settled doctrine. The verse continues to be invoked on multiple sides of contemporary argument over religious freedom, apostasy law, and coexistence, a use this atlas records as description of how the debate runs rather than as a ruling on it.