أَنَا خَاتَمُ النَّبِيِّينَ لَا نَبِيَّ بَعْدِي.
I am the Seal of the Prophets; there is no prophet after me. (Sunan al-Tirmidhī)
Lā nabiyya baʿdī expresses finality without ambiguity. It leaves no opening for another prophet to arrive in a later age.
The Qur’anic expression “Seal of the Prophets” and the Prophetic declaration “no prophet after me” support the same doctrine: a new claim to prophethood after him cannot be true.