大般涅槃經義記 1.218

1.218

自下第三明佛無愛，成前第二無悅可義。「如來無有愛念之想」，正明無愛。「夫愛念」下，舉過彰離，先舉其過。夫愛念者，總以標舉。「如彼」已下，寄喻顯過。如世母牛愛念子故，雖復飢渴，行求水草，若足、不足，忽然還歸到其子所，喻明世人有愛念故，雖復行化饒益他人，若竟、不竟，忽然放捨，還益所親。佛無此念，對過彰離。

From here on, the third [point] clarifies that the Buddha is without affection, establishing the previous second meaning of being without delight. "The Tathāgata has no notion of affectionate fondness" directly clarifies the absence of affection. From "Indeed, affectionate fondness" onward, he cites the fault to demonstrate freedom from it, first citing the fault. "Indeed, affectionate fondness" introduces it in general. From "Like that" onward, he uses a simile to reveal the fault: just as in the world a cow, out of affectionate fondness for her calf, goes in search of water and grass even though she is hungry and thirsty, and whether satisfied or unsatisfied, suddenly returns to where her calf is—the simile illustrates that because worldly people have affectionate fondness, even though they practice teaching and benefit others, whether finished or unfinished, they suddenly abandon it and return to benefit those dear to them. The Buddha is devoid of such thoughts; contrasting with the fault demonstrates his freedom from it.