Khātam al-Nabiyyīn (Arabic: خَاتَمَ النَّبِيِّينَ), or Seal of the Prophets (sometimes rendered as Khatam an-Nabuwwah) is a title used by the Qur'an to designate the Islamic prophet Muhammad. It is often understood to mean that Muhammad is the last in a series of prophets which, according to Muslim beliefs, were chosen by God to deliver the divine message of Islam. Other interpretations of the Arabic word Khātam are a seal (of approval), a seal as a means of authentication, and/or superiority,(see Ahmadiyya), Muslims generally agree that Muhammad received the final revelation from God, in the form of the Qur'an, and that it was intended for all mankind, for all time.
Read more about Khatam An-Nabuwwah: Origin, Classical Lexicons, Interpretations, Various Views, Hadith and Traditions of Muhammad, Distinction Between "messenger" and "prophet", Academic View, Controversies