大般涅槃經義記 7.333

7.333

自下第四明由聽法能滅苦惱，先舉舍利往事顯之，「以是」下結。

From here, the fourth section explains that through listening to the Dharma one can extinguish suffering and affliction; it first brings up the past event concerning Śāriputra to reveal it; from "For this reason..." onward is the conclusion.