Agniveshyagrihyasutra 1.2.1.15

1.2.1.15

atha kārīrāvratam yuñjānaḥ prathamamārabhya auṣadhyanuvākaṃ prathamamadhīyāno nātra bhūmau bhuñjīta paśuvaditi yadi vā kramamadhīyānaḥ \\1\\

Now [concerning] the vow for the Kārīrī: beginning with 'Harnessing first,' studying the section on the herbs first, he should not eat here on the ground like an animal; or if he is studying the step-by-step recitation. || 1