長部（ディーガ・ニカーヤ） 1:1171
SUJATO“yepi te, bhikkhave, ahesuṁ atītamaddhānaṁ arahanto sammāsambuddhā, tesampi bhagavantānaṁ etapparamāyeva upaṭṭhākā ahesuṁ, seyyathāpi mayhaṁ ānando.
“Those who were perfected ones, fully awakened Buddhas in the past also had attendants, who at best were like Ānanda is for me.