Allāhumma laka raka`tu,
wa bika 'āmantu, wa laka 'aslamtu
khasha`a laka sam`ee wa baṣarī,
wa mukhkhī, wa `aẓmī, wa `aṣabī,
wa mastaqalla bihi qadamī.
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).
Reference:
Muslim 1/534, Abu Dawud, An-Nasa'i and At- Tirmidhi.