Hisn al-Muslim
Subḥāna Rabbiyal-`Aẓīm.[three times] Glory to my Lord the Exalted (three times in Arabic) Reference: Abu Dawud, Ibn Majah, An-Nasa'i, At-Tirmidhi, and Ahmad. See Al-Albani's Sahih At-Tirmidhi 1/83.
سُبْـحانَ رَبِّـيَ الْعَظـيم (ثلاث مرات)
Reference