Is it valid to perform multiple obligatory prayers with a single Wudu if ritual impurity has not occurred?
Chapter on the Obligation of Purification
Al-Mughni
Book of Purification
Primary text
It is permissible to pray with one Wudu as long as ritual impurity has not been nullified. There is no known disagreement on this matter. Ahmad stated that he did not believe anyone denied this. Evidence includes the Prophet (PBUH) performing the five prayers on the Day of the Conquest (Fath) with a single Wudu, and a report from Anas stating that one Wudu sufficed for them until they experienced impurity.
Supporting text
A report indicates that the Prophet (PBUH) used to perform Wudu for every prayer, but the supporting narration clarifies that the Wudu sufficed for the individual unless impurity occurred.