Riyad as-SalihinChapter 19Hadith 1198
Full Sharh — Riyad as-Salihin 1198
وعن عائشة رضي الله عنها قالت: كان رسول الله صلى الله عليه وسلم يكثر أن يقول قبل موته "سبحان الله وبحمده، أستغفر الله، وأتوب إليه" ((متفق عليه)).
English Translation
'Aishah (May Allah be pleased with her) reported:: Prior to his demise, the Messenger of Allah (ﷺ) used to supplicate frequently: Subhan Allahi wa bihamdihi; Astaghfirullaha wa atubu ilaihi (Allah is free from imperfection, and I begin with praising Him. I beg forgiveness from Allah and I turn to Him in repentance.".
Source
Riyad as-Salihin(رياض الصالحين)
The Book of Forgiveness
Hadith Number
1198