It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "There are four qualities: if they are in you, then you need not care about whatever of this world slips from your hands: fulfilling the trust, truthful speech, good character, and purity in what one eats."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13738