Quran 44:3 from Surah Ad-Dukhaan on Divine Marvels.
إِنَّآ أَنزَلۡنَٰهُ فِي لَيۡلَةٖ مُّبَٰرَكَةٍۚ إِنَّا كُنَّا مُنذِرِينَ
English translation: Indeed We revealed it in a Night Blessed Indeed We [We] are (ever) warning
Transliteration: inna anzalnahu fi laylatin mubarakatin inna kunna mundhirina