Hawzah News Agency – The merciful prophet of Islam, peace be upon him and his household says:

ثَلاثٌ مُنْجِياتٌ ... خَوفُ اللَّهِ في السِّرِّ كأ نّكَ تَراهُ، فإنْ لَم تَكُن تَراهُ فإنّهُ يرَاك.

'Three things provide salvation...fear of Allah in private, as if you see Him, for verily even though you do not see Him, He surely sees you.'

Source: Bihar al-Anwar, v. 70, p. 7, no. 5