大般涅槃經集解 67.8

67.8

案僧宗曰：因時無果，故言亦無。必能生果，故言亦有也。色味異者，乳白而甜，酪黃而酢也。

Sengzong notes: At the time of the cause there is no fruit, hence it says 'also non-existent'. It will definitely produce the fruit, hence it says 'also existent'. 'Difference in color and taste': milk is white and sweet, while curd is yellow and sour.