Sahih Muslim | Book 42 | Chapter 3

Narrated by Abu Huraira
Abu Huraira reported that Allah's Messenger (may peace be upon him) said: One who makes efforts (for earning to be spent) on a widow and the destitute is like a striver in the cause of Allah, and I think he also said: He is like one who constantly stands for prayer and observes fast without breaking it.

Narrated by Abu Huraira
Abu Huraira reported that Allah's Messenger (may peace be upon him) said: One who looks after the orphan whether he is his relative or not, I and he would be together in Paradise like this, and Malik (explained it) with the gesture by drawing his index finger and middle finger close together.