Mishkat al-Masabih #139

‘A’isha said: God’s messenger did a certain thing and gave permission for it to be done, but some people abstained from it. When God’s messenger heard of that, he delivered a sermon, and after extolling God he said, “What is the matter with people who abstain from a thing which I do? By God, I am the one of them who knows most about God and fears Him most.” (Bukhari and Muslim.)