瑜伽論記 11.460

11.460

由此三種已下，第三明所練信等，明淨但明，那庾多者如數一十百十萬億，十億名洛沙，十洛沙名俱胝，十俱胝名那庾多，測云：俱胝則當此方非數。那庾多者當此方京數。

From 'Through these three kinds...' downward is the third part, explaining the refined faith, and so forth, clear and pure. Regarding 'nayuta': in counting, tens, hundreds, thousands, ten-thousands, and koṭis; ten koṭis are called a lakṣa, ten lakṣas are called a koṭi, and ten koṭis are called a nayuta. Ce says: a koṭi corresponds to an uncounted number in this land; a nayuta corresponds to the number jing in this land.