金剛般若波羅蜜經註解 1.121

1.121

梵語阿羅漢，華言無學，此聲聞第四果也。此位斷三界煩惱俱盡，究竟真理，無法可學，故名無學。

In Sanskrit 'arhat', in Chinese 'no-more-learning' (aśaikṣa). This is the fourth fruition of a śrāvaka. At this stage, all afflictions of the three realms are completely severed, and one fully realizes the true principle; having no dharma left to learn, it is named 'no-more-learning'.