2-69 Muhammad ibn Ali Majiluyih - may God be pleased with him - narrated that his uncle Muhammad ibn Abil-Qasim quoted Ahmad ibn Aba Abdullah al-Barqy, on the authority of his father Muhammad ibn Khalid (al-Barqy), on the authority of some of his companions who linked it up through a chain of narrators to Aba Abdullah as-Sadiq (MGB) that God’s Prophet (MGB) said,

“There are two hungry ones who would never get satiated: those who are eager to learn (would never get satiated with knowledge), and those who are greedy for money (would never get satiated with wealth).