往生集 3.30

3.30

The Mahāprajñāpāramitopadeśa says: There were bodhisattvas who remembered having slandered the Great Prajñā and fallen into evil destinies, where they underwent immeasurable kalpas. Although they cultivated other practices, they could not eradicate their transgressions. Later, they met a spiritual friend (kalyāṇamitra) who taught them to practice buddhamanasikāra toward Amitābha Buddha, whereupon they were able to eradicate their hindrances and transcend [saṃsāra] to be reborn in the Pure Land.