Quran 18:2 from Surah Al-Kahf on Divine Marvels.
قَيِّمٗا لِّيُنذِرَ بَأۡسٗا شَدِيدٗا مِّن لَّدُنۡهُ وَيُبَشِّرَ ٱلۡمُؤۡمِنِينَ ٱلَّذِينَ يَعۡمَلُونَ ٱلصَّٰلِحَٰتِ أَنَّ لَهُمۡ أَجۡرًا حَسَنٗا
English translation: Straight to warn (of) a punishment severe from near Him and give glad tidings (to) the believers those who do righteous deeds that for them (is) a good reward (is) a good reward
Transliteration: qayyiman liyundhira basan shadidan min ladun'hu wayubashira al-mu'minina alladhina ya'maluna al-salihati anna lahum ajran hasanan