Explained by Shaykh Muhammad bin Haadi
Abdullah ibn Umar—may Allah be pleased with them—would only break his fast during Ramadan with the poor. And it has been mentioned in his biography, that if his family would prevent the poor from breaking their fast with him—as they would refuse them sometimes—then he would not eat dinner. He would feel sadness—may Allah be pleased with him—thus he would not eat dinner that night. May Allah be pleased with him.Once a beggar came to him asking for food while he was about to break his fast, so he took his portion of food enough to break his fast and left the food for the beggar. So when he returned home, his family had already eaten the food in the house. Thus he remained hungry until the following night. There was no food in his home.
Ramadan did not come for the purpose of gluttony. Ramadan did not come to overload the stomachs. It came to alleviate them so that the soul may be lightened. When the stomach is light the soul becomes light and proceeds towards worship. Look at the camel. If it is slender it is suitable for racing. This outcome comes as a result of leanness. It did not come as a result of filling the stomach; it came as a result of leanness, leanness of the stomach and minimal amount of food.