(Those who fear their Lord) those who work for their Lord (in secret) even if He is invisible to them (and who dread the Hour) and who dread the chastisement of the Last Day.
- 21:4949
الَّذِينَ يَخْشَوْنَ رَبَّهُمْ بِالْغَيْبِ وَهُمْ مِنَ السَّاعَةِ مُشْفِقُونَ
These who fear their Lord unseen, and who are of the Hour fearful.
- common.revelation-Meccan
- common.hizb : 130