Hadith 1:118
Narrated ‘Aisha (rad):
When the Prophet (ﷺ) came out of the privy, he used to say, “Ghufranaka (O Allah! Grant me Your forgiveness)”. [Reported by Al-Khamsa, Abu Hatim and Al-Hakim graded it Sahih (sound)].
وَعَنْهَا; { أَنَّ اَلنَّبِيَّ - صلى الله عليه وسلم -كَانَ إِذَا خَرَجَ مِنْ اَلْغَائِطِ قَالَ: "غُفْرَانَكَ" } أَخْرَجَهُ اَلْخَمْسَةُ. وَصَحَّحَهُ أَبُو حَاتِمٍ, وَالْحَاكِم ُ (118)
Original Reference: Bulugh al-Maram 100