Satan threatens you with the prospect of poverty and bids you to be niggardly, whereas God promises you His forgiveness and bounty; and God is infinite, all-knowing,
Al-Baqara (The Cow) Verse 268
I heard Allah's Apostle saying, "whoever desires an expansion in his sustenance and age, should keep good relations with his Kith and kin.
Sahih Bukhari: Volume 3, Book 34, Number 281