Khadiragrihyasutra 4.2.8

4.2.8

akṣīriṇaḥ kaṇḍakinaḥ kaṭukāścātrauṣadhayo na syuḥ / 8

(Plants) with milky juice or with thorns or acrid plants should not be there.
2, 1. ardhamâsavratî tâmisrâdau brâhmanân âsayed vrîhikamsaudanam. 2. tasya kanân aparâsu sandhyâsu pratyag grâmât sthandilam upalipya Phalâyeti guhuyât. 3. Phallâyeti kaivam evâparasmims tâmisrâdau. 4. brahmakaryam â samâpter. 5. âkitasatam bhavati. 6. gaure bhûmibhâge brâhmano lohite kshatriyah krishne vaisyoऽvasânam goshayet samam lomasam anîrinam asushkam. 7. yatrodakam pratyagudîkîm pravartate. 8. kshîrinah kantakinah [sic] katukâs kâtraushadhayo na syur.