Quran 59:18 from Surah Al-Hashr on Divine Marvels.
يَٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُواْ ٱتَّقُواْ ٱللَّهَ وَلۡتَنظُرۡ نَفۡسٞ مَّا قَدَّمَتۡ لِغَدٖۖ وَٱتَّقُواْ ٱللَّهَۚ إِنَّ ٱللَّهَ خَبِيرُۢ بِمَا تَعۡمَلُونَ
English translation: O you (who) believe Fear Allah and let look every soul what it has sent forth for tomorrow and fear Allah Indeed Allah (is) All-Aware of what you do
Transliteration: yaayyuha alladhina amanu ittaqu al-laha waltanzur nafsun ma qaddamat lighadin wa-ittaqu al-laha inna al-laha khabirun bima ta'maluna