As-Salaam alaykum,
When his companions asked: "O Messenger of Allah, what are the most excellent of actions?" The beloved of Allah, Sallallahu alaihi Wasallam, replied:--

"To gladden the heart of human beings,
To feed the hungry,
To help the afflicted,
To lighten the sorrow of the sorrowful, and
To remove the sufferings of the injured." [Sahih Bukhari].