Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī

ذِكْرُ مَا يَقُولُ الْمَرْءُ فِي رُكُوعِهِ مِنْ صَلَاتِهِ

ibnhibban:1897 – al-Ḥasan b. Sufyān > Abū Bakr b. Abū Shaybah > Ibn Numayr And ʾAbū Muʿāwiyah > al-Aʿmash > Saʿd b. ʿUbaydah > al-Mustawrid b. Aḥnaf > Ṣilah b. Zufar > Ḥudhayfah

[Machine] "I prayed with the Messenger of Allah ﷺ , and when he went into the bowing position, he would say: 'Glory be to my Lord, the Most Great.' Then, when he prostrated, he would say: 'Glory be to my Lord, the Most High.'"  

ابن حبّان:١٨٩٧ – أَخْبَرَنَا الْحَسَنُ بْنُ سُفْيَانَ قَالَ حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ قَالَ حَدَّثَنَا ابْنُ نُمَيْرٍ وَأَبُو مُعَاوِيَةَ عَنِ الْأَعْمَشِ عَنْ سَعْدِ بْنِ عُبَيْدَةَ عَنِ الْمُسْتَوْرِدِ بْنِ أَحْنَفَ عَنْ صِلَةَ بْنَ زُفَرَ عَنْ حُذَيْفَةَ قَالَ

«صَلَّيْتُ مَعَ رَسُولِ اللَّهِ ﷺ فَلَمَّا رَكَعَ جَعَلَ يَقُولُ سُبْحَانَ رَبِّيَ الْعَظِيمِ ثُمَّ سَجَدَ فَقَالَ سُبْحَانَ رَبِّيَ الْأَعْلَى»  

See similar narrations below:

Collected by Nasāʾī
nasai:1046 – Isḥāq b. Ibrāhīm > Abū Muʿāwiyah > al-Aʿmash > Saʿd b. ʿUbaydah > al-Mustawrid b. al-Aḥnaf > Ṣilah b. Zufar > Ḥudhayfah

"I prayed with the Messenger of Allah ﷺ, and he bowed and said when bowing: 'Subhana Rabbial-azim (Glory be to my Lord Almighty).' And when prostrating: 'Subhana Rabbial-'Ala (Glory be to my Lord Most High).'"  

النسائي:١٠٤٦ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَنْبَأَنَا أَبُو مُعَاوِيَةَ عَنِ الأَعْمَشِ عَنْ سَعْدِ بْنِ عُبَيْدَةَ عَنِ الْمُسْتَوْرِدِ بْنِ الأَحْنَفِ عَنْ صِلَةَ بْنِ زُفَرَ عَنْ حُذَيْفَةَ قَالَ

صَلَّيْتُ مَعَ رَسُولِ اللَّهِ ﷺ فَرَكَعَ فَقَالَ فِي رُكُوعِهِ سُبْحَانَ رَبِّيَ الْعَظِيمِ وَفِي سُجُودِهِ سُبْحَانَ رَبِّيَ الأَعْلَى