Sura 3 Ali 'Imran (Family of Imran), ayah 60

1. الْحَقُّ مِنْ رَبِّكَ فَلَا تَكُنْ مِنَ الْمُمْتَرِينَ

   The truth is from your Lord, so do not be among the doubters.

   3:60

Translation: Saheeh International