Pathamaniddasasutta 5.4

5.4

Imehi kho, sāriputta, sattahi niddasavatthūhi samannāgato bhikkhu dvādasa cepi vassāni paripuṇṇaṃ parisuddhaṃ brahmacariyaṃ carati, ‘niddaso bhikkhū’ti alaṃvacanāya;

A mendicant who has these seven qualifications for graduation is qualified to be called a ‘graduate mendicant’. This is so whether they have lived the full and pure spiritual life for twelve years,