Reference: Sharh ‘Umdatil-Fiqh – Tape No.10 q27
Question: Whoever says
«سبحان ربي الأعلى»
when in rukoo’ instead of
«سبحان ربي العظيم»
– or otherwise when in sujood, is he then required to perform the prostration of forgetfulness (sujood as-sahoo)?
Response: If he had forgetfully done that, then he is required to perform the prostration of forgetfulness. If, however, he intentionally did so, then his prayer in incorrect.
