once
سُبْحَانَكَ اللَّهُمَّ وَبِحَمْدِكَ، أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ أَنْتَ، أَسْتَغْفِرُكَ وَأَتُوبُ إِلَيْكَ
Edition transliteration
Subhanakal-lahumma wabihamdik, ashhadu an la ilaha illa ant, astaghfiruka wa-atoobu ilayk.
Meaning
How perfect You are O Allah, and I praise You. I bear witness that None has the right to be worshipped except You. I seek Your forgiveness and turn to You in repentance.
Source and references
Hisn al-Muslim, entry 196.The reference is copied from the edition; separate editorial verification is not complete yet.
Source edition: Fortress of the Muslim. Open source ↗