Answer: Besides the explicit mention of the finality of the Prophet (SAWAS) in the noble verses of the Quran, there are several verses from which the finality of the Prophet (SAWAS) can be inferred.
One of the verses that explicitly refer to the principle of finality is when Allah Almighty says:
"Muhammad is not the father of any of your men, but he is the Messenger of Allah and the seal of the prophets. And Allah is All-Aware of everything." (Surah Al-Ahzab, verse 40)
Although this verse is in the context of explaining the permissibility of the Prophet's marriage to the divorced wife of his adopted son, Zaid, it also addresses the issue of finality.
There are numerous verses that indicate the universal nature of the Prophet's call and can be interpreted as implying his everlasting message and finality of his mission.
For example, in one of these verses, we read:
"Blessed is He who sent down the Criterion upon His servant, that he may be a warner to the worlds." (Surah Al-Furqan, verse 1),
From this verse, the finality of Islam can be inferred because the term "worlds" does not refer to a specific time period; therefore, as long as the world exists, any nation that emerges will be part of the "worlds," and the Prophet (peace be upon him) will be a warner to them.
Another verse that can be cited is when Allah Almighty says:
"...This Quran has been revealed to me that I may thereby warn you and whomever it may reach." (Surah Al-An'am, verse 19)
The generality of the term "whomever it may reach" includes all humans existing at the time of the Prophet (peace be upon him) and all humans to come in the future. This conveys the idea of the finality of Islam and the mission of the Prophet (SAWAS).
It should be noted that the discussion of the finality of the Prophet (SAWAS) is not exclusive to the Quran; rather, numerous narrations also indicate this issue, as reported in various sources. For example, in one of these narrations attributed to the Prophet (SAWAS), addressing Imam Ali (AS), we read: "O Ali, you are to me like Aaron was to Moses, except that there will be no prophet after me."