Among the obligations of prayer is the recitation of Subhan Rabbi al-Azim (Glory be to my Lord, the Exalted)
Machine translationRead the Arabic original
The questioner : Subhan Rabbi al-Azim, also, brother. The one next to you, the gray-haired man on your left. Yes. Subhan Allah. Yes, indeed.
The Shaykh : It is obligatory for everyone in all cases. What is the evidence? Allah, Glorified and Exalted is He. This is general, general. Yes, Nasr. Yes, but is Subhan Rabbi al-Azim specifically required? Is it required? A person might say Alhamdulillah, the Great, the Magnificent, the Most High. Imdad.
The questioner : Yes, it is specifically required, because when the words of Allah the Exalted, "And glorify with the praise of your Lord, the Great," were revealed, the Prophet (peace and blessings be upon him) said, "Make this in your bowing."
The Shaykh : So this is the evidence. As for the hadith mentioned by the brother Nasr, it is in fact what specifies the tasbih (remembrance of Allah).
The Shaykh : It is obligatory for everyone in all cases. What is the evidence? Allah, Glorified and Exalted is He. This is general, general. Yes, Nasr. Yes, but is Subhan Rabbi al-Azim specifically required? Is it required? A person might say Alhamdulillah, the Great, the Magnificent, the Most High. Imdad.
The questioner : Yes, it is specifically required, because when the words of Allah the Exalted, "And glorify with the praise of your Lord, the Great," were revealed, the Prophet (peace and blessings be upon him) said, "Make this in your bowing."
The Shaykh : So this is the evidence. As for the hadith mentioned by the brother Nasr, it is in fact what specifies the tasbih (remembrance of Allah).
Source
قناة «فضيلة الشيخ محمد بن صالح العثيمين»، 1863من واجبات الصلاة ذكر سبحان ربي العظيم📔 الشرح الممتع على زاد المستقنع - ابن عثيمين — youtube.com
The Arabic text is a machine transcription of the audio recording.