Anas said that when it was very cold the Prophet observed the prayer early, and when it was very hot he delayed the prayer till it was cooler. The reference is to the Friday prayer.
Al-Bara’ reported God’s Messenger as saying, “It is a duty for Muslims to bathe on Friday, and one may apply some of his wife’s perfume; but if he can get none, water is a perfume for him.”
Ahmad and Tirmidhi transmitted it, the latter saying that this is a hasan tradition.