佛說處處經 1.3

1.3

佛言：「味味次第者，所食物外合之，內分別其味令不錯誤，是為味味次第。菩薩所以得知者，前世所食噉，皆先上父母、道人，然後自食，是故得是三十二相、八十種好。」

The Buddha said: "As for the [mark of] successive tastes: when food is taken in, it is combined externally, and internally its flavors are discerned without error; this is successive tastes. The reason a bodhisattva attains this knowledge is that in past lives, whatever food he ate, he always first offered it to his parents and to men of the Way, and only afterward ate it himself. For this reason, he attained these thirty-two marks and eighty secondary signs."