صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
باب شروط الصلاة - ذكر الوقت الذي صلى النبي صلى الله عليه وسلم فيه الصلوات الخمس بوضوء واحد
Chapter on Conditions of Prayer - The time when the Prophet prayed the five prayers with one ablution.
1 hadith
Hadith 1707
Ibn Buraidah narrates from his father: The Prophet Muhammad (peace be upon him) used to perform ablution for every prayer. When the day of the conquest of Makkah came, he performed all the prayers with a single ablution.