Fulfilling Promises

The fulfillment of promise is a virtue, which Islam recommends. The breaking of promise is a vice, which it prohibits.
1. Allah the Most High said: “O you who believe, why you say that which you do not do? It is most hateful to Allah that you should say that which you do not do.â€‌
2. The Holy Prophet Muhammad (s.a.w.a.) said: “He who believes in Allah and the Day of Judgement must fulfill his promises.â€‌
3. He (s.a.w.a.) also said: “He who has these three things should he counted a hypocrite, even if he performs the daily prayers, observes fasting and thinks that he is a Muslim: breach of trust, lying and breach of promise.â€‌
4. He (s.a.w.a.) also said: “Anyone who does not wrong people in his behaviour towards them, does not lie in his talks with them, and does not break his promises to them; he is among those whose manliness is complete, whose justice is manifest, whose brotherhood is indispensable, and whose backbiting is forbidden.â€‌
5. Imam 'Ali (a.s.) the Commander of the Faithful said: “Breach of promise brings the hatred of Allah and of people. Allah says: 'It is most hateful to Allah that you should say that which you do not do.'[14]â€‌
6. Imam Ja'far al-Sadiq (a.s.) said: “A promise which a believer makes to his brother is a vow that has no expiation; so he who fails to fulfill it, his failure will he counted against Allah and he will he exposed to His hatred. Allah says: 'O you who believe, why do you say that which you do not do? It is most hateful to Allah that you should say that which you do not do.'[15]â€‌
7. He (a.s.) also said: “A believer is a brother to his believing fellow, an eye and a guide for him. He never betrays wrongs or tricks him, nor does he make to him a promise which he breaks