맛지마 니카야 3:128

Yasmiṁ samaye, bhikkhave, bhikkhuno āraddhavīriyassa uppajjati pīti nirāmisā, pītisambojjhaṅgo tasmiṁ samaye bhikkhuno āraddho hoti, pītisambojjhaṅgaṁ tasmiṁ samaye bhikkhu bhāveti, pītisambojjhaṅgo tasmiṁ samaye bhikkhuno bhāvanāpāripūriṁ gacchati.