Mukhtasar Muslim

Narrated from Umm al-Mu'minin Aisha Siddiqa (may Allah be pleased with her) that the Messenger of Allah (peace and blessings of Allah be upon him) said: O Aisha! Allah loves gentleness (and good character), and He Himself is gentle, and He gives for gentleness what He does not give for harshness or for anything else.