四大(sì dà) “the four great (physical elements which constitute the material world, viz. earth, water, fire, and air[or wind]”
HD. 3.570b(明報應論、圓覺經); DK. 3.30c(圓覺經);
55c19.淨華宿王智佛問訊世尊：“少病，少惱，起居輕利，安樂行不？ 四大調和不？ 世事可忍不？ ……”(p)
K. 429.4.dhātavaḥ; not found at Z. 127c25;