Sunan an-Nasa'i, Book 50, Hadith 107 (In-Book) ⓘ
It was narrated that 'Aishah said: "I looked for the Messenger of Allah [SAW] one night in my bed, and I did not find him. I struck my hand on the head of the bed, and my hand fell on the soles of his feet. He was prostrating and saying: 'A'udhu bi 'afwika min 'iqabika, wa a'udhu bi ridaka min sakhatika, wa a'udhu bika minka (I seek refuge in Your forgiveness from Your punishment, and I seek refuge in Your pleasure from Your wrath, and I seek refuge in You from You.)'"
أَخْبَرَنَا إِبْرَاهِيمُ بْنُ يَعْقُوبَ، قَالَ حَدَّثَنِي الْعَلاَءُ بْنُ هِلاَلٍ، قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ، عَنْ زَيْدٍ، عَنْ عَمْرِو بْنِ مُرَّةَ، عَنِ الْقَاسِمِ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ مَسْرُوقِ بْنِ الأَجْدَعِ، عَنْ عَائِشَةَ، قَالَتْ طَلَبْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم ذَاتَ لَيْلَةٍ فِي فِرَاشِي فَلَمْ أُصِبْهُ فَضَرَبْتُ بِيَدِي عَلَى رَأْسِ الْفِرَاشِ فَوَقَعَتْ يَدِي عَلَى أَخْمَصِ قَدَمَيْهِ فَإِذَا هُوَ سَاجِدٌ يَقُولُ " أَعُوذُ بِعَفْوِكَ مِنْ عِقَابِكَ وَأَعُوذُ بِرِضَاكَ مِنْ سَخَطِكَ وَأَعُوذُ بِكَ مِنْكَ " .
also referenced under: Hadith 5534 (Reference) & Volume 6, Book 50, Hadith 5536 (DarusSalam)