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

إنّ للسَّخاءِ مِقداراً فإنْ زادَ علَيهِ فهُو سَرَفٌ.

'Generosity has a set limit, and if taken to extremes becomes squandering.'

Source: Bihar al-Anwar, v. 69, p. 407, no. 115