Ayesha reported,

Aisha said, "I noticed the Prophet ﷺ was missing one night, so I thought he had gone to one of his other wives. I felt around for him, then came back and found him bowing or prostrating, saying, 'Glory and praise be to You. There is no god but You.'I said, 'May my father and mother be ransomed for you! I am occupied with one matter, while you are occupied with another.'"

Azami 10998

Sahih

عن عائشة قالت

افتقدت النبي ﷺ ذات ليلة، فظننت أنه ذهب إلى بعض نسائه، فتحسست ثم رجعت فإذا هو راكع، أو ساجد يقول: سبحانك وبحمدك لا إله إلا أنت. فقلت: بأبي أنت وأمي! إني لفي شأن، وإنك لفي آخر.

الأعظمي 10998صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Supplications, remembrances, and prayer upon the chosen Prophet ﷺ
Chapter
Supplications of adhan and prayer, and what is related to them
Section
What is said in ruku and sujud
Numbering
Jami al-Kamil 10998 (2nd edition)
Azami 10998