سُبُّوْحٌ قُدُّوْسٌ رَبُّ الْمَلَائِكَةِ وَالرُّوْحِ

Subboohun, Quddoosun, Rabbul-malaa'ikati warrooh

Glory (to You), Most Holy (are You), Lord of the angels and the Spirit. Ayesha (RA) said that Rasulullah (ﷺ) used to recite it in rukoo and sujood.

Reference: Sahih (Albani). Abu Dawud: 872