Upon Completing Ablution

"If anyone amongst you performs the ablution and upon completing it says,

أَشْهَدُ أَنْ لَا إِلَهَ إلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ، وَأَشْهَدُ أَنَّ مُحَمَّداً عَبْدُهُ وَرَسُولُهُ 'Ashhadu ana la ilaha ilalah wah dawho la sharika lawho wa ashadu ana, Muhammadan abduwho wa rasulhwho.' (I testify that there is no god but Allah and that Muhammad is the servant of Allah and His Messenger),

...the eight gates of Paradise will be opened for him and he may enter by whichever of them he wishes."