Su, Nid., 3, 12.1 maithunavighātād atimaithunādvā śukraṃ calitamanirgacchadvimārgagamanādanilo 'bhitaḥ saṃgṛhya meḍhravṛṣaṇayor antare saṃharati saṃhṛtya copaśoṣayati sā mūtramārgamāvṛṇoti mūtrakṛcchraṃ bastivedanāṃ vṛṣaṇayoś ca śvayathumāpādayati pīḍitamātre ca tasminneva pradeśe pravilayamāpadyate tāṃ śukrāśmarīmiti vidyāt //