Christian theology structurally rejects the idea of lesser or later revelations.

Evidence

There is however no room in Christian theology for lesser revelations; all prophets outside of Christianity are false prophets, devotees of Satan who must be fought. This is confirmed, for Perfectus, by Muhammad’s endorsement of polygamy and promise of beautiful houris in paradise; what could contrast more dramatically with the celibacy of the Christian monk or bishop? — John V. Tolan, Saracens, 507

Categorization

• XREF: Connects to the immodesty moral-panics piece: celibacy vs. polygamy as the axis of offense, parallel to dress norms as identity signaling. — connects to: Christians lacked a concept of ritual impurity outside actual sin
• SEED: Essay angle: asymmetries of religious toleration — Islam can accommodate Christianity as an incomplete earlier revelation, while Christianity cannot reciprocate, a structural asymmetry that recurs across conversion contexts.