Sayyiduna Samurah (may Allah be pleased with him) says: The Prophet (peace and blessings be upon him) used to say to us: "If one of you had a valley filled (with wealth) from top to bottom, he would love for another valley to be filled for him as well." He said: "Indeed, by Allah, if I were able, I would fill you (further). And a man's soul is not filled with wealth until it is filled with dust."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6976