成唯識論述記 4.203

4.203

述曰：若現行起無種子者，同外道自然生，唯以自然為因，無餘因故；下第十破中亦云：無所熏故。若無自種，則界地往還等，諸染污法無因而生過。然彼經部執色受熏持種，如五十一末敘。或雖不相應，彼計是假無體法，大眾有不相應，然無量習。今並設遮，亦有執故。

The Commentary states: If manifest activity arises without seeds, it would be identical to the spontaneous generation [held by] non-Buddhists, taking only nature (svabhāva) as the cause and having no other cause; below, in the refutation in the tenth [fascicle], it is also said: because there is nothing to be perfumed. If they lack their own seeds, then in passing back and forth between realms and grounds, there would be the fault that all defiled dharmas arise without a cause. But that Sautrāntika school holds that form receives perfuming and holds seeds, as related at the end of [fascicle] fifty-one [of the Yogācārabhūmi]. Or, although unassociated [formations] are held by them to be conceptual dharmas devoid of real substance, the Mahāsāṃghikas have unassociated [formations] but lack perfuming. Now both are refuted, because there are also such tenets.