Agniveshyagrihyasutra 3.9.3.9

3.9.3.9

tathaiva jāyayāgnīnādhāya vrātyena paśuneṣṭvā giriṃ gatvāgnaye kāmāyeṣṭiṃ nirvapedāyuṣmatīṃ śatakṛṣṇalām \

Having in the same way set up the fires with his wife, having sacrificed with a vrātya animal, having gone to a mountain, he should offer an iṣṭi to Agni Kāma, [namely] the Āyuṣmatī [iṣṭi] with a hundred kṛṣṇalas [of gold].