مختصر صحيح مسلم
Mukhtasar Sahih Muslim
Issues of Goodness and Kindness
On gentleness.
Umm al-Mu'mineen Aisha Siddiqa (may Allah be pleased with her) narrates from the Prophet (peace and blessings be upon him) that he said: Gentleness is not found in anything except that it beautifies it, and it is not removed from anything except that it makes it defective.