Al-Baqarah 2:111

Waqaloo lan yadkhula aljannata illaman kana hoodan aw nasara tilka amaniyyuhumqul hatoo burhanakum in kuntum sadiqeen

And they say, "None will enter Paradise except one who is a Jew or a Christian." That is [merely] their wishful thinking. Say, "Produce your proof, if you should be truthful."

They say that no one shall ever enter Paradise unless he is a Jew, or a Christian. These are their fancies. Say, “Bring your proof, if you are truthful.”