成唯識論了義燈 5.37

5.37

言初二近分名喜悅心者，准《瑜伽》五十七有十一根。此《論》下文初二近分定無樂根故，但十一，如《疏》所說。然《疏》義准，既引經文，離生喜樂，以經說喜，即證有喜，經既說樂，何不有樂？准此道理，合有樂根。但未明滿說十一根。非於此中許有二解，下文定判無樂根故。

Regarding the statement that the preliminary dhyānas of the first two [absorptions] are called the joy of mental gladdening: according to fascicle fifty-seven of the Yogācāra, there are eleven faculties. Below in this treatise, it is established that the preliminary dhyānas of the first two definitely lack the faculty of pleasure; therefore, there are only eleven, as explained in the Commentary. However, the Commentary infers the meaning: since it quotes the sūtra text, 'pleasure and joy born of seclusion,' because the sūtra speaks of joy, this proves that there is joy; since the sūtra also speaks of pleasure, why should there not be pleasure? According to this principle, it ought to possess the faculty of pleasure. It is merely that it does not fully elucidate it and speaks of eleven faculties. It is not that two interpretations are permitted here, because the text below decisively determines that there is no faculty of pleasure.