Surah Al-Anbiya, ayah 49

21:49

ٱلَّذِينَ يَخۡشَوۡنَ رَبَّهُم بِٱلۡغَيۡبِ وَهُم مِّنَ ٱلسَّاعَةِ مُشۡفِقُونَ ٤٩

Alladhīna yakhshawna rabbahum bil-ghaybi wahum minas-sā'ati mushfiqūn

Who fear their Lord unseen,889 while they are of the Hour apprehensive.

Footnotes

889 Which can mean "Him being unseen" by them or "though they are unseen" by others.