大乘義章 17.43

17.43

次論緣覺。於中曲有三門分別：一釋名義、二對小分別、三對大分別。初釋名義。言緣覺者，外國正音名辟支佛，此翻辟支名曰因緣，佛名為覺。緣覺名義，解有兩種：一約所觀法門以釋。緣者是其十二緣法，始從無明乃至老死，觀斯悟解，從緣得覺，故號緣覺。二就得道因緣以釋。如《辟支佛得道因緣經》中廣說，如拂迦沙，思風動樹而得悟道。如是等皆藉現事緣而得覺悟，故曰緣覺。名義如是（此一門竟）。

Next, the pratyekabuddha is discussed. Within this there are three divisions: first, explaining the name and meaning; second, distinguishing them relative to the Hīnayāna; third, distinguishing them relative to the Mahāyāna. First, explaining the name and meaning. As for pratyekabuddha (literally "one enlightened through conditions"), the correct sound in the foreign language is pratyekabuddha; translated here, pratyeka means conditions, and buddha means awakened. There are two explanations of the name and meaning of pratyekabuddha: First, it is explained in terms of the Dharma gateway contemplated. "Conditions" refers to the twelve dharmas of conditioning, from ignorance down to old age and death; contemplating these, one awakens and understands, attaining awakening from conditions; hence one is named pratyekabuddha. Second, it is explained in terms of the conditions for attaining the path. As explained extensively in the Sūtra on the Causes and Conditions of Pratyekabuddhas Attaining the Path, just as Pukkasāti attained awakening through contemplating the wind moving a tree, such persons all rely on present phenomenal conditions to attain awakening; hence they are called "those enlightened through conditions." Such are the name and meaning (this finishes the first section).