Hawzah News Agency – Imam al-Sadiq peace be upon him says:

السَّخاءُ ما كانَ ابتِداءً، فَأمّا ما كانَ مِن مَسألَةٍ فَحَياءٌ وتَذَمُّمٌ.

'Generosity is when the act of giving is initiated. When it is prompted by a request however, it is merely out of a sense of embarrassment or obligation.'

Source: Bihar al-Anwar, v. 71, p. 357, no. 21