大乘義章 10.46

10.46

第一釋名。止觀捨者，經中亦名定慧及捨，此乃修中之差別也。修義不同，一門說三。止者，外國名奢摩他，此翻名止。守心住緣離於散動，故名為止。止心不亂，故復名定。觀者，外國名毘婆舍那，此翻名觀。於法推求簡擇名觀，觀達稱慧。捨者，外國名憂畢叉，此翻名捨。行心平等捨離偏習，故名為捨（此一門竟）。

First, explaining the names. Śamatha, vipaśyanā, and upekṣā are also named in the sūtras as samādhi, prajñā, and upekṣā; these are differences within cultivation. Because the meanings of cultivation differ, one category speaks of three. As for śamatha: in foreign languages it is called śamatha; here it is translated as 'stopping' (śamatha). Guarding the mind to abide on its object and leaving behind distraction and agitation is therefore called 'stopping'. Stopping the mind so that it is not disordered is thus also called 'samādhi'. As for vipaśyanā: in foreign languages it is called vipaśyanā; here it is translated as 'contemplation' (vipaśyanā). Inquiring into and selecting dharmas is called 'contemplation'; contemplating and penetrating is designated 'prajñā'. As for upekṣā: in foreign languages it is called upekṣā; here it is translated as 'equanimity' (upekṣā). The mental activity being balanced and relinquishing one-sided habitual practice is therefore called 'equanimity' (this concludes the first heading).