Viyahapannatti 5.6.251

5.6.251

āyariya-uvajjhāe ṇaṃ bhaṃte! savisayaṃsi gaṇaṃ agilāe saṃgiṇhamāṇe, agilāe uvagiṇhamāṇe kaihiṃ bhavaggahaṇehiṃ sijjhati jāva savvadukkhāṇaṃ aṃtaṃ kareti?
goyamā! atthegatie teṇeva bhavaggahaṇeṇaṃ sijjhati, atthegatie docceṇaṃ bhavaggahaṇeṇaṃ sijjhati, taccaṃ puṇa bhavaggahaṇaṃ nāikkamati|

"Venerable Sir! In how many rebirths does an ācārya or upādhyāya, unwearyingly supporting the troop in his own sphere of duties [and] unwearyingly assisting it, attain liberation […] up to make an end of all suffering?"
"Gautama! A certain one attains liberation in that very rebirth, a certain one attains liberation in a second rebirth, but he does not exceed a third rebirth."