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Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:30 – ʿAmr b. Muḥammad al-Nāqid > Hāshim b. al-Qāsim > Isrāʾīl > Yūsuf b. Abū Burdah from his father > ʿĀʾishah

When the Prophet ﷺ came out of the privy, he used to say: "Grant me Thy forgiveness."  

أبو داود:٣٠ – حَدَّثَنَا عَمْرُو بْنُ مُحَمَّدٍ النَّاقِدُ حَدَّثَنَا هَاشِمُ بْنُ الْقَاسِمِ حَدَّثَنَا إِسْرَائِيلُ عَنْ يُوسُفَ بْنِ أَبِي بُرْدَةَ

عَنْ أَبِيهِ حَدَّثَتْنِي عَائِشَةُ ؓ أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا خَرَجَ مِنَ الْغَائِطِ قَالَ غُفْرَانَكَ  

See similar narrations below:

Collected by Aḥmad, Dārimī, Suyūṭī
ahmad:25220 – Hāshim b. al-Qāsim > Isrāʾīl > Yūsuf b. Abū Burdah from his father > ʿĀʾishah

[Machine] "When the Prophet ﷺ would come out of the restroom, he would say, 'I seek Your forgiveness.'"  

أحمد:٢٥٢٢٠ – حَدَّثَنَا هَاشِمُ بْنُ الْقَاسِمِ حَدَّثَنَا إِسْرَائِيلُ عَنْ يُوسُفَ بْنِ أَبِي بُرْدَةَ عَنْ أَبِيهِ قَالَ حَدَّثَتْنِي عَائِشَةُ

أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا خَرَجَ مِنَ الْغَائِطِ قَالَ غُفْرَانَكَ  

darimi:707 – Mālik b. Ismāʿīl > Isrāʾīl > Yūsuf b. Abū Burdah from his father > ʿĀʾishah

"When the Prophet would exit the toilet he would say: 'Ghufranak.'" (Using translation from Tirmidhī 7)   

الدارمي:٧٠٧ – أَخْبَرَنَا مَالِكُ بْنُ إِسْمَاعِيلَ حَدَّثَنَا إِسْرَائِيلُ عَنْ يُوسُفَ بْنِ أَبِي بُرْدَةَ عَنْ أَبِيهِ أَنَّ عَائِشَةَ حَدَّثَتْهُ

أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا خَرَجَ مِنَ الْخَلَاءِ قَالَ «غُفْرَانَكَ»