Upon completing the ablution
الذكر بعد الفراغ من الوضوء
'Ash-hadu 'an lā 'ilāha 'illallāhu waḥdahu lā sharīka lahu wa 'ash-hadu 'anna Muḥammadan `abduhu wa Rasūluhu.
I bear witness that none has the right to be worshipped but Allah alone, Who has no partner; and I bear witness that Muhammad is His slave and His Messenger.
[ Muslim 1/209. Hisn al-Muslim 13 ]
Allāhummaj`alnī minat-tawwābīna waj`alnī minal-mutaṭahhirīn.
O Allah, make me among those who turn to You in repentance, and make me among those who are purified.
[ At-Tirmidhi 1/78. See also Al-Albani, Sahih At- Tirmidhi 1/18. Hisn al-Muslim 14 ]
Subḥānaka Allāhumma wa biḥamdika, 'ash-hadu 'an lā 'ilāha 'illā 'Anta, 'astaghfiruka wa 'atūbu 'ilayk.
Glory is to You, O Allah, and praise; I bear witness that there is none worthy of worship but You. I seek Your forgiveness and turn to You in repentance.
[ An-Nasa'i, 'Amalul-Yawm wal-Laylah, p. 173. See also Al-Albani, 'Irwa'ul-Ghalil 1/135 and 2/94. Hisn al-Muslim 15 ]