Allah says
(translation of its meaning):
“And whatever you spend of anything (in Allah’s Cause), He will replace it. And He is the Best of providers.”
(Quran 34:39)
The Prophet ﷺ said:
“Charity does not in any way decrease the wealth.”
(Sahih Muslim 2588)
“Allah said, 'O son of Adam! Spend, and I shall spend on you.”
(Sahih al-Bukhari 5352)