faith and disbelief; the two must be kept distinct, otherwise the boundary would lose its purpose. It is like the landmarks that separate two tracts of land, one belonging to Zayd and the other to ʿAmr: those markers ensure that Zayd’s property does not encroach upon ʿAmr’s, nor ʿAmr’s upon Zayd’s. Prayer functions in exactly the same way—whoever stands outside it cannot claim the standing of those beyond it.

Hence, of all religious duties, if a person abandons the prayer he is deemed a disbeliever. Were he to give up the fast of Ramadan, eating and drinking in daylight without concern, we would not judge him a disbeliever; but if he abandons the prayer, we would. If he refuses to pay zakat, amassing wealth without giving its due, we would not call him a disbeliever; but if he abandons the prayer, we would. Even if he neglects the Hajj while able to perform it, we would not rule that he has disbelieved; yet if he abandons the prayer, we certainly would.

ʿAbd Allāh ibn Shuqayq—the well-known Successor—stated, “The Companions of Muhammad ﷺ did not consider the abandonment of any deed to constitute disbelief except the prayer.”

Therefore, the very prayer that the Messenger ﷺ commanded: whoever leaves it is as though he has forsaken monotheism itself—he becomes a disbelieving polytheist, Allah forbid. This is underscored in the narration of Jābir, related by Muslim from Jābir, from the Prophet ﷺ—