大般涅槃經疏 26.18

26.18

「奢摩他」下，第二釋名。先釋定名。一本云陀亦云舍，皆梵音輕重，翻名不同。一翻為止，止息惡緣。或名為定。此名多訓，故留本音，不可偏判。毘婆舍那，此翻為觀，亦云見。憂畢差，翻為捨相，亦平等不爭等。

From “Śamatha” onward is the second part, explaining the names. First explaining the name of concentration: one version has tuó, and another has shě; these are variations of lighter and heavier Sanskrit phonetics, differing in translated names. One translation is cessation (zhǐ), ceasing evil conditions; or it is called concentration. Because this term has multiple glosses, the original phonetic rendering is retained and cannot be exclusively determined. Vipaśyanā is translated here as contemplation (guān), and also as seeing. Upekṣā is translated as the mark of equanimity (shěxiàng), and also as equality, non-contention, and so forth.