once
سُبْحَانَ الَّذِي يُسَبِّحُ الرَّعْدُ بِحَمْدِهِ وَالْمَلاَئِكةُ مِنْ خِيفَتِهِ
Edition transliteration
Subhanal-lathee yusabbihur-raAAdu bihamdih, walmala-ikatu min kheefatih.
Meaning
How perfect He is, (The One) Whom the thunder declares His perfection with His praise, as do the angles out of fear of Him.
Source and references
Hisn al-Muslim, entry 168.The reference is copied from the edition; separate editorial verification is not complete yet.
Source edition: Fortress of the Muslim. Open source ↗