The Messenger of Allah ﷺ said, "The likeness of the believers in their mutual love, mercy, and compassion is like that of a single body. When one limb of it suffers, the rest of the body responds with sleeplessness and fever."
قال رسول الله ﷺ: مثل المؤمنين في توادهم، وتراحمهم، وتعاطفهم مثل الجسد إذا اشتكى منه عضو تداعى له سائر الجسد بالسهر والحمى.