Al 'Imran, 85 Ayah
3:85
وَمَن يَبۡتَغِ غَيۡرَ ٱلۡإِسۡلَٰمِ دِينٗا فَلَن يُقۡبَلَ مِنۡهُ وَهُوَ فِي ٱلۡأٓخِرَةِ مِنَ ٱلۡخَٰسِرِينَ ٨٥
Wa Man Yabtaghi Ghayra Al-'Islāmi Dīnāan Falan Yuqbala Minhu Wa Huwa Fī Al-'Ākhirati Mina Al-Khāsirīna
And whoever desires other than Islam as religion - never will it be accepted from him, and he, in the Hereafter, will be among the losers.