دُعَاءُ الْخُرُوجِ مِنَ الْخَلَاء
Duʿāʾ al-Khurūj mina al-Khalāʾ — After Leaving the Toilet
غُفْرَانَكَ
Ghufrānaka.
(I ask) Your forgiveness.
Aisha reported: When the Prophet ﷺ came out of the privy, he would say, 'Grant me Your forgiveness (ghufrānaka).'
Source: Sunan Abī Dāwūd 30; Sunan al-Tirmidhī 7