2. Al-Baqara (The Cow)

Surah: 2   Aya: 111

111. Waqaloo lan yadkhula aljannata illa man kana hoodan aw nasara tilka amaniyyuhum qul hatoo burhanakum in kuntum sadiqeena
  

  Translation

111. And they say, "None shall enter Paradise unless he be a Jew or a Christian." These are their own desires. Say (O Muhammad Peace be upon him ), "Produce your proof if you are truthful."