The belief in the "finality of prophet-hood" is an integral part faith (Imaan).
This belief is called "Khatme Nubuwwat" and it is a fundamental doctrine of Islam. The entire Muslim Ummah, from the time of the Holy Prophet Sallallahu Alayhi Wasallam to this day, has held this belief as an integral part of its faith (Imaan). According to the law of Islam, a person who thinks that prophet-hood has not been terminated upon the Holy Prophet Sallallahu Alayhi Wasallam and the door of prophet-hood has not been sealed and closed, is an apostate, Kafir and a renegade.
Scores of Qur'anic verses, and hundreds of Ahadith of the Holy Prophet Muhammad Sallallahu Alayhi Wasallam can be cited in support of this belief, i.e. the "Finality of prophet-hood". To reproduce here all the Qur'anic verses and the Ahadith supporting this belief would take us too far afield. However, a verse from the Holy Qur'an is being quoted here which clarifies this belief of Muslims. Thereafter, quoting the interpretation of the term Khatamun Nabiyeen given by the Qadyianis and the interpretation given by the Muslims, I will bring forth evidence to prove that the commentary and the interpretation presented by the Muslims is supported by Qur'an and Ahadith, and other sources of interpretations of Qur'an, thus leaving no doubt concerning the finality of prophet-hood.
"Muhammad (Sallallahu Alayhi Wasallam) is not the father of any of your men, but (he is) the apostle of Allah and the seal of the prophets: and Allah has full knowledge of all things." Surah Al-Ahzab Verse 40
In this verse the following points are to take note of:
1) The Holy Prophet Muhammad Sallallahu Alayhi Wasallam has been described as the "Seal of the prophets" or the "Last of the prophets", and not the holder or the possessor of the seal. The holder of the seal in the sense of "prophet-maker" is non else but Almighty Allah.
2) The Holy Prophet Muhammad sallallahu alayhi wasallam is described as the "Seal of Prophets" i.e. all categories of prophets - legislative or non legislative, "Zilli" or "Buroozi".
3) A seal is affixed at the end of a message, decree or enlistment so that there should be no further addition to it.
This verse from the holy Qur'an is the most clear evidence for the belief of "Khatme Nubuwwat" (finality of prophet-hood). The well known Mufassir Allaamah Hafiz Ibne Katheer Rahmatullahi Alayhi writes in his book: "This verse is a clear evidence for this belief that there is no prophet after the Holy Prophet Muhammad Sallallahu Alayhi Wasallam". (Tafseer Ibne Katheer, P. 501, Volume 3)
Zilli/Buroozi, both are words of Arabic origin. Zilli literally means "shadowy". But Mirza Ghulam Ahmad Qadiani has used this term to shield his claim to prophet-hood. By Zilli prophet he means a prophet who reflects a perfect form of the person of the Holy Prophet Muhammad Sallallahu Alayhi Wasallam as well as of his prophet-hood. Buroozi means appearance/incarnation. which Mirza Qadiani then used to interpret as, a prophet who has appeared as the incarnation of the Holy Prophet Muhammad Sallallahu Alayhi Wasallam.