Invocations during Ruki' (bowing in prayer) — Du'a 4

اللَّهُمَّ لَكَ رَكَعتُ، وَبِكَ آمَنتُ، وَلَكَ أَسلَمتُ، خَشَعَ لَكَ سَمعِي، وَبَصَرِي، وَمُخِّي، وَعَــــظمِي، وَعَصَبِي، [وَمَا استَقَلَّت بِهِ قَدَمِي]

Pronunciation

Allahumma laka raka't, wabika amant, walaka aslamt, khasha'a laka sam'ee, wabasaree, wamukhkhee, wa'athmee, wa'asabee, wamas taqalla bihi qadamee

English meaning

O Allah, unto You I have bowed, and in You I have believed, and to You I have submitted. My hearing, sight, mind, bones, tendons and what my feet carry are humbled before You.