Bhagavatapurana 5.18.29

5.18.29

hiraṇmaye 'pi bhagavān nivasati kūrma-tanuṃ bibhrāṇas tasya tat priyatamāṃ tanum aryamā saha varṣa-puruṣaiḥ pitṛ-gaṇādhipatir upadhāvati mantram imaṃ cānujapati //

29. In the continent of Hiranmaya (land of gold) again the glorious Lord abides taking the form of Kurma (Turtle or Tortoise); and that most beloved form of the Lord, Aryaman, the chief of all pitris with all the people of the continent, proceeds to worship and constantly repeats the following *mantra*.