Skandapurana 6.3.67.104

6.3.67.104

kākiṇīṃ caiva yo dadyādbrāhmaṇe vedapārage .
tena dānaphalaṃ sarvaṃ kurukṣetrādikaṃ ca yat .. 67.104 ..

And whoever gives even a single cowrie to a brahmin who has mastered the Vedas, / by him is obtained the entire fruit of giving at Kurukṣetra and other places; 67.104