Invocations during Ruku (bowing in prayer)
 

"سُبْحَانَ رَبِّيَ الْعَظِيمِ".

33. Subhaana Rabbiyal-'Adheem.

Glory to my Lord the Exalted (three times in Arabic)

Reference: Abu Dawud, Ibn Majah, An-Nasa'i, At-Tirmithi, and Ahmad. See Al-Albani's Sahih At-Tirmithi 1/83.

"سُبْحَانَكَ اللَّهُمَّ رَبَّنَا وَبِحَمْدِكَ اللَّهُمَّ اغْفِرْ لِي".

34. Subhaanaka Allaahumma Rabbanaa wa bihamdika Allaahum-maghfir lee.

Glory is to You , O Allah , our Lord , and praise is Yours . O Allah , forgive me.

Reference: Al-Bukhari 1/99, Muslim 1/350.
 

"سُبُّوحٌ، قُدُوسٌ، رَبُّ الْمَلَائِكَةِ وَالرُّوحِ".

35. Subboohun, Quddoosun, Rabbul-malaa'ikati warrooh.

Glory (to You) , Most Holy (are You) , Lord of the angels and the Spirit.

Reference: Muslim 1/353, Abu Dawud 1/230.
 

"اللَّهُمَّ لَكَ رَكَعْتُ، وَبِكَ آمَنْتُ، وَلَكَ أَسْلَمْتُ خَشَعَ لَكَ سَمْعِي، وَبَصَرِي وَمُخِّي، وَعَظْمِي، وَعَصَبِي، وَمَا اسْتَقَلَّ بِهِ قَدَمِي".

36. Allaahumma laka raka'tu, wa bika 'aamantu, wa laka 'aslamtu khasha'a laka sam'ee, wa basaree, wa mukhkhee, wa 'adhmee, wa 'asabee, wa mastaqalla bihi qadamee.

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 and what my feet have mounted upon (for travel).

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

"سُبْحَانَ ذِي الْجَبَرُوتِ، وَالْمَلَكُوتِ، وَالْكِبْرِيَاءِ، وَالْعَظَمَةِ".

37. Subhaana thil-jabarooti, walmalakooti, walkibriyaa'i, wal'adhamati.

Glory is to You, Master of power, of dominion, of majesty and greatness.

Reference: Abu Dawud 1/230, An-Nasa'i and Ahmad. Its chain of narration is good (Hasan).