Surah Al-Baqarah (The Cow), Verse 111

وَقَالُوْا لَنْ یَّدْخُلَ الْجَنَّةَ اِلَّا مَنْ كَانَ هُوْدًا اَوْ نَصٰرٰی تِلْكَ اَمَانِیُّهُمْ قُلْ هَاتُوْا بُرْهَانَكُمْ اِنْ كُنْتُمْ صٰدِقِیْنَ ۟

Wa qaaloo lai yadkhulal jannata illaa man kaana Hoodan aw Nasaaraa; tilka amaaniyyuhum; qul haatoo burhaa nakum in kuntum saadiqeen

“And they say: "None shall enter Paradise unless he be a Jew or a Christian." Those are their (vain) desires. Say: "Produce your proof if ye are truthful."”

Quran 2:111 (Yusuf Ali Translation)