不退轉子(bù tuì zhuǎn zǐ) “a son (of the
Buddha, who is firmly set on the path to enlightenment) without going back to a lower stage”
112c24.今此諸樂 不退轉子 無數億劫 行救大衆(v)
≠ K. 313.1.ārya-viśārada~; O. .anyi viśāradā sutā; F. .anyi viśāradhāḥ sutā; L. 42a3.佛子;