大般涅槃經義記 1.144

1.144

問曰：上言此段因於純陀獻供，明佛無待，故名為常，今以何故無差釋常？釋言：無差猶是無待，今、昔兩時並無假待，故曰無差。

Question: Above, it was said that this passage takes occasion from Cunda's offering of food to clarify that the Buddha is without dependence and is therefore called "permanent"; why now is "permanence" explained in terms of "no difference"? Explanation: "No difference" is still "without dependence"; between the two times of the present and the past, there is no provisional dependence at all, and therefore it is called "no difference".