سُبْحَانَ اللَّهِ الْعَظِيمِ " .
يَا حَىُّ يَا قَيُّومُ " .
Abu Hurairah narrated that: When a matter would worry the Prophet (ﷺ), he would raise his head up toward the sky and say: “Glory is to Allah, the Magnificent (Subḥān Allāhil-'Aẓīm).” And when he would strive in supplication; he would say: “O the Living, O Sustainer (Yā Ḥayyu yā Qayyūm).”
Jami' at-Tirmidhi
(Chapters on Supplication)
Reference : Jami' at-Tirmidhi 3436
In-book reference : Book 48, Hadith 67
Grade: Da’if (Darussalam)
