What is the Belief in the Finality of Prophethood?

Dear Islamic brothers! اَلْـحَمْـدُ لـِلّٰـه, our Master and Guide, Sayyiduna Muhammad صَلَّى الـلّٰـهُ عَلَيْهِ وَاٰلِهٖ وَسَلَّم is the Final Prophet. What is the belief in the Finality of Prophethood in Islam, and what is its importance? Imam Aḥmad Raza Khan’s statements can be summarised as follows:

From the moment Muhammad al-Muṣṭafāʾصَلَّى الـلّٰـهُ عَلَيْهِ وَاٰلِهٖ وَسَلَّم  arrived in this world until the Day of Judgement, no new Prophet can come under any circumstance, in any era, in the seven heavens or the seven earths, or in any region of the universe.

Furthermore, AꜤlā Ḥaḍrat رَحْمَةُ الـلّٰـهِ عَـلَيْه writes: “In Islam, just as it is necessary to believe in لَا اِلٰہَ اِلَّا اللہ, it is also imperative and necessary to believe that مُحَمَّدٌ رَّسُوْلُ اللہ صَلَّی اللہُ عَلَیْہِ وَ آلِہٖ وَ سَلَّم is خَاتَمُ النَّبِیّٖن. A person who denies this belief or possesses even a fraction of a doubt is definitely a disbeliever, is cursed, and will remain in Hell forever. Moreover, it is not just this; anyone who knows about the apostate’s false belief and yet does not consider him a disbeliever, or doubts his disbelief, is also a disbeliever and an apostate.^[1]

It should be noted that the Prophet of Allah, Sayyidunā ꜤĪsā عَـلَيْـهِ الـسَّـلاَم, is residing in the fourth heaven and has not yet tasted death. Near the Day of Judgement, he will return to the world and will propagate the Shariah of the Final Prophet صَلَّى الـلّٰـهُ عَلَيْهِ وَاٰلِهٖ وَسَلَّم. The arrival of Sayyidunā ꜤĪsā عَـلَيْـهِ الـسَّـلاَم will not affect the belief in the Finality of Prophethood because the meaning of خَاتَمُ النَّبِیّٖن is that no one will be granted prophethood after the advent of our Beloved Prophet صَلَّى الـلّٰـهُ عَلَيْهِ وَاٰلِهٖ وَسَلَّم.

Sayyidunā ꜤĪsāعَـلَيْـهِ الـسَّـلاَم  is a Prophet already. He had been granted prophethood before, and when he returns to the world near the Day of