This Is My Faith - Al-fatlawi, Ali - الصفحة ٢٠٣ - Words on Universality and Finality of the Message
regard, the Most Exalted Allah says in the Noble Quran:
(Mohammad is not the father of any man among you, but he is the Messenger of Allah and the Seal of the Prophets; and Allah is Aware of all things)٣٣;٤٠.
(O you who believe! Most surely many of the scholars and the monks devour the wealth of people unjustly, and turn (them) from Allah's way; and (as for) those who hoard up gold and silver and do not spend it in Allah's way; give them tidings of a painful punishment)٩;٣٤.
There is another Holy Verse that refers to the fact that Islam is the religion that will triumph:
(…that he may cause it to prevail over all religion, however much the idolaters may be averse)٩;٣٣.
B - Finality in the Honorable Sunna and Hadith.
There are many Hadith from the Prophet Mohammad (PBUH) affirming that he is the Seal of the Prophets. In one of these Hadith, he is telling Imam Ali (PBUH) that “You are to me like Haroun to Moses except there will be no prophet after me”.