成唯識論了義燈 2.139

2.139

若爾，二乘定性之人不得趣大，彼所知障，亦名極重不？若名極重，亦應依立。若不名重，以不障彼自乘果故，無姓亦爾。

If so, since persons determinate in the two vehicles cannot proceed toward the Mahāyāna, is their obstruction to knowables also termed extremely heavy, or not? If it is termed extremely heavy, it should also be established based on it. If it is not termed heavy because it does not obstruct the fruit of their own vehicle, then it is the same for those lacking lineage.