Look, you are being called upon to expend in Allah's Way, yet some of you are being niggardly, whereas the one who is niggardly is, in fact, being niggardly only to himself. Allah is Self-Sufficient: it is you who are the needy. If you turn away, Allah will replace you by another people, and they will not be like you. (47:38)
Narrated by: Anas bin Malik
The Prophet said, "Facilitate things to people (concerning religious matters), and do not make it hard for them and give them good tidings and do not make them run away (from Islam)."