Garudapurana 1.71.26

1.71.26

daivapitryātitheyeṣu gurusaṃpūjaneṣu ca /
bādhyamāneṣu vividhairdeṣajātairviṣodbhavaiḥ //

in rites for the gods, ancestors, and guests, and in worship of the guru,
when afflicted by various troubles born of defects and arising from poison;