O Allah, to You I bow (in prayer) and in You I believe and to You I have submitted. Before You my he...

Reference:Muslim 1/534, Abu Dawud, An-Nasa'i and At- Tirmidhi.Hisnul Muslim 36

اللّهُـمَّ لَكَ رَكَـعْتُ وَبِكَ آمَـنْت ولَكَ أَسْلَـمْت خَشَـعَ لَكَ سَمْـعي وَبَصَـري وَمُخِّـي وَعَظْمـي وَعَصَـبي وَما استَقَـلَّ بِهِ قَدَمي

Transliteration

Allāhumma laka raka`tu. wa bika 'āmantu, wa laka 'aslamtukhasha`a laka sam`ee wa baṣarī. wa mukhkhī, wa `aẓmī, wa `aṣabī. wa mastaqalla bihi qadamī.

Translation

O Allah, to You I bow (in prayer) and in You I believe and to You I have submitted. Before You my hearing is humbled, and my sight, and my mind, my bones, my nerves and what my feet have mounted upon (for travel).