وَالْفُرْقَةَ زَيْغًا وَعَذَابًا
And we see division as deviation and a cause of punishment.
Furqah is separation from the united path; zaygh is turning away from the truth; and punishment warns of the grave outcome of such departure.
The danger arises when a person rejects the Messenger’s guidance and the path of believers after the truth has become clear. This is more than a disagreement in wording; it concerns the direction of religious commitment.