What to say before performing ablution and after ablution

What to say before performing ablution Dua


Ash-hadu an laa ilaahu illallaahu wahdahu laa shareeka lahu wahdahu laa shareeka lahu wa ash-hadu anna muhammadan abduhu wa rasooluhu.


Meaning of Dua:

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