大般涅槃經集解 69.46

69.46

案僧亮曰：一內、二外者，有情是內，無情是外。次觀聞者，聞賢聖所說也。無車輪許者，地肥果實，家內種殖，皆悉豐足也。

Sengliang comments: The first is internal, the second is external; sentient beings are internal, insentient things are external. Next, "contemplating what is heard" means hearing what the worthy and noble have expounded. "Not even the size of a cartwheel" means that the fertile ground and fruit trees planted within the household are all abundant.