俱舍論記 18.166

18.166

「經說四人至為一梵福量」者，此即第二明梵福量果。依經問答。馱都，此云性，如來體性也。四事，謂衣服、飲食、臥具、醫藥。如舍利子等令僧破已還和。餘文可知。

Regarding "The sūtra speaks of four persons... constitute one measure of Brahmā-merit": this is the second [part], clarifying the fruits of the measure of Brahmā-merit. Question and answer according to the sūtra. Dhātu: here translated as "nature" (prakṛti), the nature of the Tathāgata's physical remains. The four requisites are robes, food and drink, bedding, and medicine. As when Śāriputra and others, having caused the Saṃgha to be schismed, brought it back into concord. The rest of the text is clear.