Sahih Muslim Book 45, Hadith 100
Kindness is not to be found in anything but that it adds to its beauty and it is not withdrawn from anything but it makes it defective.
'A'isha, verily Allah is kind and He loves kindness and confers upon kindness which he does not confer upon severity and does not confer upon anything else besides it (kindness).
" 'A'isha mounted upon a wild camel and she began to make that go round and round. Thereupon Allah's Messenger (ﷺ) said: You should show kindness, and then he made a mention of this hadith.