The Vajracchedika Prajnaparamita Sutra

Subhuti, if on the one hand, a daughter or son of a good family gives up her or his life in the morning as many times as there are grains of sand in the Ganges as an act of generosity, and gives as many again in the afternoon and as many again in the evening, and continues doing so for countless ages; and if, on the other hand, another person listens to this sutra with complete confidence and without contention, that person's happiness will be far greater. But the happiness of one who writes this sutra down, receives, recites, and explains it to others cannot be compared.