Brihat Jataka
चतुष्पादगते भानौ शेषैर्वीर्यसमन्वितै: ॥ द्वितनुस्थैश्च यमलौ भवत: कोशवेष्टितौ ॥ ५-४ ॥
If Jupiter aspects neither the lagna nor the Moon, or if there is no aspect of Jupiter on Sun and Moon located in one sign, the birth should be declared without doubt as bastard. It is also a bastard birthif Sun and Moon are in the company of malefics.
english translation
catuSpAdagate bhAnau zeSairvIryasamanvitai: ॥ dvitanusthaizca yamalau bhavata: kozaveSTitau ॥ 5-4 ॥
hk transliteration by Sanscript