How few are fasting and how many are just hungry

A lady whilst fasting was swearing at her maid in the presence of the Prophet of Islam. The Prophet (pbuh) offered her some food to eat. She said: “I’m fasting O Messenger of God!” the Prophet replied: “How are you fasting and you swear at your maid. Fasting is not only from food and drink. Indeed God made it that way so that food and drink are used as a veil against other sins, verbal or action. How few are fasting and how many are just hungry.” 

Bihar al-Anwar Vol.96 p.293