Sahih Bukhari
Invocations
Volume: 008 / Book Number: 075 / Hadith Number: 356
Narrated Ibn Abbas:
The Prophet used to invoke Allah at the time of distress, saying, "La ilaha illal-lahu al-'Azim, al-Halim, La ilaha illal-lahu Rabbu-s-samawati wal-ard wa Rabbu-l-arsh il-azim,"