Bodhicaryavatara 1.59

1.59

kadalīva phalaṃ vihāya yāti kṣayamanyat kuśalaṃ hi sarvameva /
satataṃ phalati kṣayaṃ na yāti prasavatyeva tu bodhicittavṛkṣaḥ //

For all other virtue indeed perishes after yielding fruit, like the plantain tree;
but the tree of the awakening mind bears fruit constantly, never perishes, and only burgeons. //