عن عمرو بن عامر عن أنس بن مالك قال: كان النبي صلى الله عليه وسلم يتوضأ عند كل صلاة. قلت: كيف كنتم تصنعون؟ قال: يُجزئُ أحدنا الوضوء ما لم يُحْدِث.
[صحيح] - [رواه البخاري]
‘Amr ibn ‘Āmir related that Anas ibn Mālik said: "The Prophet (may Allah’s peace and blessings be upon him) used to perform ablution upon every prayer." I asked: "What did you use to do?" He said: "Ablution would remain valid for anyone of us until he broke it."
Sahih/Authentic. - [Al-Bukhari]
Anas ibn Mālik (may Allah be pleased with him) reports in this Hadīth that the Prophet (may Allah be pleased with him) used to make ablution for each of the five obligatory prayers. This is what he would often do, seeking what is more perfect - by way of desirability, not obligation. Indeed, it happened that the Prophet (may Allah’s peace and blessings be upon him) offered all prayers with one ablution, to demonstrate the permissibility of doing so, as related in a Hadīth by Muslim (No. 277). ‘Amr ibn ‘Āmir asked Anas: What did you use to do in ablution? Anas (may Allah be pleased with him) replied: Ablution would be sufficient for one of us unless he invalidated it. So, one ablution would be valid for two or three prayers.