I said to Anas b. Malik: Did the Messenger of Allah (ﷺ) pray while putting on the shoes? He said: Yes.
Sahih Muslim Book 5, Hadith 74
← Previous Hadith 'Abdullah b. Shakhkhir narrated it on the authority of his father that he said prayer with the Messenger of Allah (ﷺ), and he spat and then rubbed it off with his left shoe.

Sahih Muslim Book 5, Hadith 73 Next Hadith → I said to Anas like (that mentioned above).

Sahih Muslim Book 5, Hadith 75