Surah Al-Baqarah, ayah 147

ٱلۡحَقُّ مِن رَّبِّكَ فَلَا تَكُونَنَّ مِنَ ٱلۡمُمۡتَرِينَ ١٤٧

Al-haqqu mir rabbika falā takūnanna minal-mumtarīn

The truth is from your Lord, so never be among the doubters.