Ayesha reported,

I noticed the Messenger of Allah ﷺ was missing from his sleeping place, so I began searching for him, thinking he had gone to one of his maidservants. My hand fell upon him while he was prostrating, and he was saying, "O Allah, forgive me for what I have concealed and what I have made known."

Nasai 1125

Sahih

أخبرنا محمد بن قدامة قال حدثنا جرير عن منصور عن هلال بن يساف قال

قالت عائشة رضي الله عنها

فقدت رسول الله ﷺ من مضجعه فجعلت ألتمسه وظننت أنه أتى بعض جواريه فوقعت يدي عليه وهو ساجد وهو يقول اللهم اغفر لي ما أسررت وما أعلنت

النسائي 1125صحيح
Contents
Reference
Commentary
Ayat
Collection
Sunan Nasai Sughra
Book
Placing the hands between the knees in bowing
Chapter
Another type
Numbering
Darussalam 1125
Nasai 1125