Ashtangasamgraha 49.36

49.36

tatra śukretyādi | śuklaṃ viśinaṣṭi puruṣāhārādahetunā śukrasyānaikaśo dṛṣṭena varṇena bhaviṣyatastadgarbhasya varṇaviśeṣaniyama ucyate | etena varṇaviśeṣasya piturāyattatvaṃ darśitam | mātāpyantarvatnī satī yadā saumyānyāsevate tadā garbhasya gauratā | udakavihāro jalakrīḍā | āgneyaistilādibhiḥ kṛṣṇatā | vidāhinaḥ sarve dravyato guṇataḥ karmataśca tenoparadeśādhivāso'pi gṛhītaḥ | miśrāṇāṃ sevanāt śyāvatvam | evaṃ sthitideśakulānuvṛttyāpi varṇabhedo bhavati | yathā auttarāpathikānāṃ gauratā dākṣiṇātyānāmābhradraviḍadhānṣkādīnāṃ kṛṣṇatā | madhyadeśe śyāvatvamityevamādi | tathā kule'pi jātyā śilpyādibhedābhinne kacidgauratvaṃ kacit kṛṣṇatvaṃ kacicchyāvatvaṃ ceti |
na kevalametadeva varṇaviśeṣakāraṇaṃ yāvadgarbhārambhakamahābhūtādhikyamapi | etaddarśayati |