"Who is he that will loan to Allah, a beautiful loan, (QARZE-HASNA) which Allah will double and multiply many times? It is Allah that gives (you) want or plenty and to Him shall be your return " (-Sura Baqara 2:245 )
Hadees
It was narrated from Abdullah bin Umar (RA) that Allah’s Messenger (PBUH) said – while he was on the Minbar speaking about charity & refraining from begging, “The upper hand is better than the lower hand, and the upper hand is the one that gives, and the lower hand is the one that receives.”(sahih muslim vol.3)