Upon Completing Ablution – 1

أَشْهَدُ أَنْ لَا إِلَـهَ إِلاَّ اللّهُ وَحْدَهُ لَا شَريـكَ لَـهُ وَأَشْهَدُ أَنَّ مُحَمَّـداً عَبْـدُهُ وَرَسُـولُـهُ

Ashhadu an la ilaha illal-lahu wahdahu la shareeka lah, wa-ashhadu anna Muhammadan AAabduhu warasooluh.

I bear witness that none has the right to be worshipped except Allah, alone without partner, and I bear witness that Muhammad is His slave and Messenger.
[مسلم 1:209]

Upon Completing Ablution – 2

اَللَّهُـمَّ اجْعَلْنِـي مِنَ التَّـوَّابِينَ وَاجْعَـلْنِي مِنَ الْمُتَطَهِّـرِينَ

Allahummaj-AAalnee minat-tawwabeena wajAAalnee minal-mutatahhireen.

O Allah, make me of those who return to You often in repentance and make me of those who remain clean and pure.
[الترمذي 1:78]

Upon Completing Ablution – 3

سُبْحـَانَكَ اللَّهُـمَّ وَبِحَمْدِكَ، أَشْهَـدُ أَنْ لاَ إِلَهَ إِلاَّ أَنْتَ، أَسْتَغْفِرُكَ وَأَتُوبُ إِلَـيْكَ

Subhanakal-lahumma wabihamdika ashhadu an la ilaha illa anta astaghfiruka wa-atoobu ilayk.

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.
[النسائي في عمل اليوم والليلة ص 173]