Not graded
Hisn al-Muslim (Fortress of the Muslim) 15
(سُبْحانَكَ اللَّهُمَّ وَبِحَمْدِكَ، أَشْهَدُ أَنْ لاَ إِلَهَ إِلاَّ أَنْتَ، أَسْتَغْفِرُكَ وَأَتوبُ إِلَيْكَ).
(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 in repentance to You.)
Cited in Hisn al-Muslim (Fortress of the Muslim) (No. 15).