«من توضأ فأحسن الوضوء، ... فقال: أشهد أن لا إله إلا الله وحده لا شريك له وأشهد أن محمد عبده ورسوله فتحت له أبواب الجنة يدخل من أيها شاء»
The Prophet (peace and blessings be upon him) said:
"Whoever performs ablution and does it well, then says: 'Ashhadu an la ilaha illallahu wahdahu la sharika lah, wa ashhadu anna Muhammadan 'abduhu wa rasuluh' (I bear witness that there is no true god except Allah, alone, without partner, and I bear witness that Muhammad (peace and blessings be upon him) is His servant and Messenger), the gates of Paradise are opened for him, and he may enter through whichever of them he wishes."
Hadith Referenceصحیح الجامع الصغیر / حرف الميم / 6164