Dua When Leaving the Toilet

غُفْرَانَكَ اَلْحَمْدُ لِللَّهِ الَّذِيْ أَذْهَبَ عَنِّيْ الأَذّىَ وَ عَافَانِيْ

O Allah. I seek your forgiveness. All praises are due to Allah who has taken away from me the discomfort and granted me comfort.
(Bukhari)