The Quranic principle of 'a prophet for every nation' is a cornerstone of Islamic theology, asserting that Allah, in His infinite mercy and justice, has sent a messenger to every community throughout human history. This doctrine, explicitly stated in verses like Yunus 10:47 and An-Nahl 16:36, ensures that no people are without divine guidance, making them accountable for their response. According to classical commentators such as Ibn Kathir, this universal dispatch of prophets serves as a proof against humanity on the Day of Judgment. The core message of all these prophets was unified: the call to worship Allah alone and to shun all forms of idolatry (Taghut), as emphasized in Surah An-Nahl. This belief not only highlights the inclusivity of God's plan for humanity but also forms the basis for interfaith understanding from an Islamic perspective, recognizing a shared monotheistic heritage across different cultures and eras.