佛祖統紀 33.16

33.16

無盡財　供養佛華多聽轉賣買香油。猶多者轉賣無盡財中（僧祇律○釋氏要覽云。世言長生錢者是也。子母滋生故稱無盡）。

Inexhaustible Wealth: When there are abundant flowers offered to the Buddha, it is permitted to resell them to purchase incense and oil. If there is still an excess, it is resold into the inexhaustible wealth (from the *Mahāsāṃghika Vinaya*; the *Essence of the Buddhist Order* says: 'This is what worldly people call "perpetual cash"; it is named "inexhaustible" because principal and interest multiply').