Śrāddha-kalpa: Amarakantaka–Tīrtha-Māhātmya and Akṣaya Pitṛ-Tarpaṇa
तत्र स्नात्वा दिवंयान्ति स्वशरीरेण मानवाः / दत्तं वापि सदा श्राद्धमक्षय्यं समुदाहृतम्
tatra snātvā divaṃyānti svaśarīreṇa mānavāḥ / dattaṃ vāpi sadā śrāddhamakṣayyaṃ samudāhṛtam
Bathing there, people ascend to heaven with their very bodies. And any śrāddha offered there is declared to yield imperishable merit.