Glory is to You, O Allah, and praise; I bear witness that there is noneworthy of worship but You. I ...

Reference:An-Nasa'i, 'Amalul-Yawm wal-Laylah, p. 173. See also Al-Albani, 'Irwa'ul-Ghalil 1/135 and 2/94.Hisnul Muslim 15

سُبْحـانَكَ اللّهُـمَّ وَبِحَمدِك أَشْهَـدُ أَنْ لا إِلهَ إِلاّ أَنْتَ أَسْتَغْفِرُكَ وَأَتوبُ إِلَـيْك

Transliteration

Subḥānaka Allāhumma wa biḥamdika,'ash-hadu 'an lā 'ilāha 'illā 'Anta,'astaghfiruka wa 'atūbu 'ilayk.

Translation

Glory is to You, O Allah, and praise; I bear witness that there is noneworthy of worship but You. I seek Your forgiveness and turn to You inrepentance.