Surah Al-Ankabut (The Spider), Verse 52

قُلْ كَفٰی بِاللّٰهِ بَیْنِیْ وَبَیْنَكُمْ شَهِیْدًا یَعْلَمُ مَا فِی السَّمٰوٰتِ وَالْاَرْضِ وَالَّذِیْنَ اٰمَنُوْا بِالْبَاطِلِ وَكَفَرُوْا بِاللّٰهِ اُولٰٓىِٕكَ هُمُ الْخٰسِرُوْنَ ۟

Qul kafaa billaahi bainee wa bainakum shaheedaa; ya'lamu maa fis samaawaati wal ard; wallazeena aamanoo bil baatili wa kafaroo billaahi ulaaa'ika humul khaasiroon

“Say: "Enough is Allah for a witness between me and you: He knows what is in the heavens and on earth. And it is those who believe in vanities and reject Allah, that will perish (in the end).”

Quran 29:52 (Yusuf Ali Translation)