Amr bin Amir Al-Ansari narrated that he heard Anas bin Malik saying:"The Prophet would perform Wudu for every Salat." I said, "So what about you, what would you do?" He said I wouId pray all of the prayers with one Wudu, as long as we had not committed Hadath (anything that invalidates Wudu)

English translation · Jami' at-Tirmidhi