Sayyiduna Anas (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) used to perform ablution for every prayer, and for each of us, one ablution would suffice until something that breaks ablution occurred (such as urination, defecation, sleep, etc.).
Hadith Takhrijاس روایت کی سند صحیح ہے۔ دیکھئے: [بخاري 214] ، [معجم الكبير 365/6] ، [البيهقي 162/1] ، [شرح السنة 230] ، [ترمذي 60] ، [أحمد 132/3]
Brief Explanation
(Commentary on Hadith 742)
From this hadith, it is understood that performing a new ablution (wudu) for every prayer is recommended (mustahabb), and it is also permissible to perform several prayers with a single ablution.