اَللَّهُمَّ لَكَ رَكَعْتُ وَبِكَ آمَنْتُ وَلَكَ أَسْلَمْتُ خَشَعَ لَكَ سَمْعِيْ وَبَصَرِيْ وَمُخِّيْ وَعِظَامِيْ وَعَصَبِيْ
Transliteration
Allaahumma laka raka'tu, wa bika 'aamantu, wa laka 'aslamtu khasha'a laka sam'ee, wa basaree, wa mukhkhee, wa 'idhaamee, wa 'asabee
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, as is my sight, my mind, my bones, my nerves.
Note
Ali (RA) said, Rasulullah (ﷺ) used to say these words in rukoo.
This dua for ruku shows you give up everything to Allah. Your heart feels humble. Your body and soul bow down in true obedience during prayer.
Allahumma laka rakatu is a great dua for ruku. It shows your whole body and soul bow only to Allah during prayer.
While bowing down, say this ruku ki dua. After Subhana Rabbiyal Azeem, you can add it to make your salah more complete.
It means O Allah I bow to You and believe in You. My hearing, sight, and bones are humble before You alone - that's what this dua for ruku says.
Yes. Sahih Muslim and Abu Dawud mention this dua for ruku. The Prophet often said it - it's a strong masnun dua.
Yes. Both obligatory and sunnah prayers allow this ruku dua. It helps you bow longer and praise Allah more in namaz.
Start with Subhana Rabbiyal Azeem when learning what to say in ruku. After you know that, then try learning this longer dua for ruku.
People often type dua for ruko by mistake. Correct word is Ruku. Finding the right dua helps you follow proper islamic prayer guide.