The Compendium of Bheḷa 4.8.4

4.8.4

sācedevam[iti hā]āśāsīta[āsita] śyāmaṃ lohitākṣaṃ putraṃjanayeyam[jana yetre yāvat dvitīye māsapuṣpaṃ paśyet yamiti] itieṣāmeva[eṣāma] yavānāṃmanthaṃ[mandaṃ] kārayet lohitakukkuṭaraktena saptarātraṃ raktaśālīnāmodanamanupahataṃ bhuñjīta | dauhṛde sā tāmreṇa ca vāsasā paridadhyāt | tāmre cāsyāḥ śayanāsane dadyādraktavṛṣamaśvaṃ[-vṛṣamadaṃ] vāsyā darśayet | evaṃ śyāmaṃ lohitākṣaṃ putraṃ janayati ||

If she should desire, "May I give birth to a dark son with reddish eyes," one should prepare a drink of that very same barley; for seven nights she should consume uncorrupted cooked red śāli rice with the blood of a red rooster. / During her pregnancy cravings, she should dress in copper-colored garments; / one should give her a copper-colored bed and seat; / and one should show her a red bull or horse. / In this way, she gives birth to a dark son with reddish eyes.