From Sahih Muslim (Hadith 642):
Sulaiman b. Buraida narrated it from his father that the Messenger of Allah (ﷺ) offered prayers with one ablution on the day of the Conquest (of Mecca) and wiped over the socks. 'Umar said to him:You have today done something that you have not been accustomed to before. He (the Holy Prophet) said: 0 'Umar, I have done that on purpose
Reference: Muslim 642