Quran 2:111 from Surah Al-Baqara on Divine Marvels.
وَقَالُواْ لَن يَدۡخُلَ ٱلۡجَنَّةَ إِلَّا مَن كَانَ هُودًا أَوۡ نَصَٰرَىٰۗ تِلۡكَ أَمَانِيُّهُمۡۗ قُلۡ هَاتُواْ بُرۡهَٰنَكُمۡ إِن كُنتُمۡ صَٰدِقِينَ
English translation: And they said Never will enter the Paradise except who is (a) Jew[s] or (a) Christian[s] That (is) their wishful thinking Say Bring your proof if you are [those who are] truthful
Transliteration: waqalu lan yadkhula al-janata illa man kana hudan aw nasara til'ka amaniyyuhum qul hatu bur'hanakum in kuntum sadiqina