Umm Hani’ said that the Prophet entered her house on the day of the Conquest of Mecca, bathed and prayed eight rak'as, adding, “I never saw a shorter prayer than it, except that he performed the bowing and the prostration completely.” In another version she said, “That was in the forenoon.” (Bukhari and Muslim.)
Hadith Referenceمشكوة المصابيح / كتاب الصلاة / 1309
Hadith Gradingالألبانی:مُتَّفق عَلَيْهِ | زبیر علی زئی:متفق عليه
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «متفق عليه، رواه البخاري (357) و مسلم (336/71)»