釋氏要覽 2.256

2.256

大毘婆沙論云。何名法輪。答是法所成故。法為自性故。名法輪。如世間呼金輪等輪。是動轉不住義。捨此離彼義。能伏怨敵義。又圓滿義。謂。轂輻輞三事具足故。輪體法。即八聖道支也。初明小乘法輪者。以戒為先故。用正語正業正命為轂。轂根本也。依戒生定故。用正定正勤正念為輞。輞能攝錄。依定發慧故。用正見正思惟為輻。○次大乘法輪者。以智為先。用正見正思惟為轂。智惠皆名根本智故。次用正語正業正命為輻。輻依轂立。戒因智淨故。後用正。定正念正勤為輞。定因戒得。戒為定攝故。

The Mahāvibhāṣā-śāstra asks: 'Why is it named the Wheel of the Dharma?' It answers: 'Because it is accomplished by the Dharma and has Dharma as its intrinsic nature, it is named the Wheel of the Dharma. Just as the worldly call golden wheels and the like