WAEC - Islamic Religious Knowledge Irk (2012 - No. 12)
The supplication in the Ruku posture is
Subhana Rabiyal-A'la
Subhana liah Walhmd lilah
Subhana Rabbika Rabbil'izzah
Subhana Rabbiyal Azim
Explication
The supplication in the Ruku posture is subhana Rabbiyak Azim.To recite Subhana Rabbiyal 'Azim at least three times in Ruku' position