اللَّهُمَّ احْفَظْنِي مِنْ بَيْنِ يَدَيَّ وَمِنْ خَلْفِي وَعَنْ يَمِينِي وَعَنْ شِمَالِي وَمِنْ فَوْقِي، وَأَعُوذُ بِعَظَمَتِكَ أَنْ أُغْتَالَ مِنْ تَحْتِي
Transliteration
Allahummahfazni min bayni yadayya wa min khalfi wa 'an yamini wa 'an shimali wa min fawqi, wa a'udhu bi'azamatika an ughtala min tahti
English meaning
O Allah, protect me from before me and from behind me, from my right and from my left, and from above me. And I seek refuge in Your greatness from being swallowed up from below me.
When is it recited?
Recited in the morning and evening.
Source
Abu Dawud, Adab 101, 5074; Nasa'i, Isti'adhah 3, 5531