The Apostle of Allah (ﷺ) did not observe fast in the ten days of Dhul-Hijja.
Sahih Muslim Book 14, Hadith 11
← Previous Hadith I never saw the Messenger of Allah (ﷺ) fasting in the ten days of Dhu'I-Hijja.

Sahih Muslim Book 14, Hadith 10 Next Hadith → Do not put on a shirt or a turban, or trousers or a cap, or leather stockings except one who does not find shoes; he may put on stockings but he should trim them below the ankles. And do not wear clothes to which saffron or wars is applied.

Sahih Muslim Book 15, Hadith 1