It was narrated from Abu Sa'eed that: The Messenger of Allah said: "There is no ablution for one who does not mention the Name of Allah (before doing it)."

It was narrated that Abu Sa'eed bin Zaid said: "The Messenger of Allah said: 'There is no prayer for one who does not have ablution, and there is no ablution for one who does not mention the Name of Allah (before it).'"

It was narrated that Abu Hurairah said: "The Messenger of Allah said: 'There is no prayer for one who does not have ablution, and there is no ablution for one who does not mention the Name of Allah (before it).'"

It was narrated by 'Abdul-Muhaimin bin 'Abbas bin Sahl bin Sa'd As-Sa'idi, from his father, from his grandfather, that: The Prophet said: "There is no prayer for one who does not have ablution, and there is no ablution for one who does not mention the Name of Allah (before it). There is no prayer for one who does not send blessing, (Salat) upon the Prophet, and there is no prayer for one who does not love the Ansar." (Da'if) Another chain with similar wording.