Quran 30:60 from Surah Ar-Room on Divine Marvels.
فَٱصۡبِرۡ إِنَّ وَعۡدَ ٱللَّهِ حَقّٞۖ وَلَا يَسۡتَخِفَّنَّكَ ٱلَّذِينَ لَا يُوقِنُونَ
English translation: So be patient Indeed (the) Promise (of) Allah (is) true And (let) not take you in light estimation those who (are) not certain in faith
Transliteration: fa-is'bir inna wa'da al-lahi haqqun wala yastakhiffannaka alladhina la yuqinuna