Imam as-Sadiq (‘a) said: "I ensure that he who economizes will never become indigent."
Bihar-ul-Anwar, vol. 71, p. 346
Imam Amir ul Mu'mineen ‘Ali (‘a) said: "The best policy is the application of benevolence."
Ghurar-ul-Hikam, p. 182
Imam Amir ul Mu'mineen ‘Ali (‘a) said: "(To consume) more than needed is extravagance."
Mustadrak-ul-Wasa'iI, vol. 15, p. 271
Imam al-Kadhim (‘a) said: "Had people a moderate habit in eating, their bodies would become strengthened."
Bihar-ul-Anwar, vol. 66, p. 334
The Holy Prophet (S) said: "None passes a graveyard except that the dead call out to him: 'O you neglectful person! Were you aware of what we have been made aware of, it would make your blood run cold'."