དེ་སྐད་ཅེས་གསོལ་བ་དང་།
The Blessed One then addressed the venerable Śāradvatī­putra as follows: “Śāradvatī­putra, the immaturity of a bodhisattva manifests when great bodhisattva beings who have previously regressed descend to the level of the śrāvakas or the level of the pratyekabuddhas, and fail to enter into the maturity of the bodhisattvas.”
Emptiness, Bodhisattvas, Perfection of Wisdom