JB, 1, 4, 1.0 taṃ trirātraṃ taṃ dvirātraṃ tam aptoryāmaṃ tam atirātraṃ taṃ vājapeyaṃ taṃ ṣoḍaśinaṃ tam ukthyaṃ tam agniṣṭomaṃ tam iṣṭipaśubandhāṃs taṃ cāturmāsyāni taṃ darśapūrṇamāsau tam ete agnihotrāhutī abhisamabharan //

JB, 1, 40, 3.0 atha yaṃ dvitīyaṃ sruvam unnayati tad vai cāturmāsyānāṃ rūpam //

JB, 1, 40, 4.0 cāturmāsyair evāsyeṣṭaṃ bhavati ya evaṃ vidvān dvitīyaṃ sruvam unnayati //

JB, 2, 41, 11.0 tasmād etā darśapūrṇamāsābhyāṃ vā cāturmāsyair vā paśubandhena vā saumyena vādhvareṇeṣṭvopariṣṭāj japet //