"I noticed that the Messenger of Allah ﷺ was missing from bed, so I started to look for him, and I thought that he had gone to one of his concubines. Then my hand fell on him when he was prostrating and saying: "Allahummaghfirli ma asrartu wa ma a'lant (O Allah, forgive me for what (sin) I have concealed and what I have done openly).'"  

عَائِشَةُ ؓ فَقَدْتُ رَسُولَ اللَّهِ ﷺ مِنْ مَضْجَعِهِ فَجَعَلْتُ أَلْتَمِسُهُ وَظَنَنْتُ أَنَّهُ أَتَى بَعْضَ جَوَارِيهِ فَوَقَعَتْ يَدِي عَلَيْهِ وَهُوَ سَاجِدٌ وَهُوَ يَقُولُ اللَّهُمَّ اغْفِرْ لِي مَا أَسْرَرْتُ وَمَا أَعْلَنْتُ  

"I noticed that the Messenger of Allah ﷺ was missing and I thought he had gone to visit one of his concubines, so I looked for him and found him prostrating and saying: 'Rabbighfirli ma asrartu wa ma a'lant (O Allah, forgive me for what (sin) I have concealed and what I have done openly).'"  

فَقَدْتُ رَسُولَ اللَّهِ ﷺ فَظَنَنْتُ أَنَّهُ أَتَى بَعْضَ جَوَارِيهِ فَطَلَبْتُهُ فَإِذَا هُوَ سَاجِدٌ يَقُولُ رَبِّ اغْفِرْ لِي مَا أَسْرَرْتُ وَمَا أَعْلَنْتُ