Surah Al-Baqarah, Verse 41

وَءَامِنُواْ بِمَآ أَنزَلۡتُ مُصَدِّقٗا لِّمَا مَعَكُمۡ وَلَا تَكُونُوٓاْ أَوَّلَ كَافِرِۭ بِهِۦۖ وَلَا تَشۡتَرُواْ بِـَٔايَٰتِي ثَمَنٗا قَلِيلٗا وَإِيَّٰيَ فَٱتَّقُونِ٤١

waāminū bimā anzaltu muṣaddiqan limā maʿakum walā takūnū awwala kāfirin bihi walā tashtarū biāyātī thamanan qalīlan wa-iyyāya fa-ittaqūni

And believe in what I have sent down confirming that which is [already] with you, and be not the first to disbelieve in it. And do not exchange My signs for a small price, and fear [only] Me.