"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)." (Using translation from Tirmidhī 60)
سَمِعْتُ أَنَسًا يَقُولُ كَانَ رَسُولُ اللهِ ﷺ يَتَوَضَّأُ عِنْدَ كُلِّ صَلَاةٍ قَالَ قُلْتُ وَأَنْتُمْ كَيْفَ كُنْتُمْ تَصْنَعُونَ؟ قَالَ كُنَّا نُصَلِّي الصَّلَوَاتِبِوُضُوءٍ وَاحِدٍ مَا لَمْ نُحْدِثْ