What he said bowing, and how long he stayed there
Hudhayfah timed it against the standing.
سُبْحَانَ رَبِّيَ الْعَظِيمِ سُبْحَانَ رَبِّيَ الْعَظِيمِ
Subḥāna rabbiya-l-ʿaẓīm
“Glory to my Lord, the Mighty.”
Where this comes from
Hudhayfah watched him pray at night. Allāhu akbar three times, then the whole of al-Baqarah, then a bowing about as long as the standing had been, saying this. Then a rising about as long as the bowing. Nothing in it was hurried.
The full narration
Narrated Hudhayfah: Hudhayfah saw the Messenger of Allah (ﷺ) praying at night. He said: Allah is most great" three times, "Possessor of kingdom, grandeur, greatness and majesty." He then began (his prayer) and recited Surah al-Baqarah; then he bowed and he paused in bowing as long as he stood up; he said while bowing, "Glory be to my mighty Lord," "Glory be to my mighty Lord" ; then he raised his head, after bowing: then he stood up and he paused as long as he paused in bowing and said, "Praise be to my Lord" ; then he prostrated and paused in prostration as long as he paused in the standing position; he said while prostrating: "Glory be to my most high Lord"; then he raised his head after prostration, and sat as long as he prostrated, and said while sitting: "O my Lord forgive me." He offered four rak'ahs of prayer and recited in them Surah al-Baqarah, Aal Imran, an-Nisa, al-Ma'idah, or al-An'am. The narrator Shu'bah doubted
Source
Sunan Abī Dāwūd · 874
- Al-Albani: Sahih
- Muhammad Muhyi Al-Din Abdul Hamid: Sahih
- Shuaib Al Arnaut: Sahih
- Zubair Ali Zai: Sahih