Is there a certain Du‘a’ (supplication) authentically transmitted to be said during performing Wudu’ (ablution)
All praise be to Allah Alone, and peace and blessings be upon His Messenger, and his family and Companions.
There is no Du‘a’ that is authentically reported from the Prophet (peace be upon him) which he said while performing Wudu’, or while washing or wiping any part of his body. The Du‘a’s that are mentioned in this regard are baseless Bid‘ah (innovation in religion). What is known to be lawful by the authority of Shari‘ah (Islamic law) is Tasmiyah (saying, "Bismillah [In the Name of Allah]") at the beginning of Wudu’ and after finishing one should pronounce the Two Shahadahs (Testimonies of Faith: I testify that there is no god but Allah and I testify that Muhammad is His Slave and Messenger), and supplicate, saying:
“O Allah! Make me of those who are constantly repentant and of those who often purify themselves.”
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.