Brihat Parashara Hora Shastra
रविराहू यदा स्वांशे सर्पाद् भीतिः प्रजायते । शुभदृष्टौ भयं नैव पापदृष्टौ मृतिभवेत् ॥ १९॥
Rahu-Sūrya in Karakāńś. Should Rahu and Sūrya be in Karakāńś, there will be fear from snakes. If a benefic gives a Drishti to Rahu-Sūrya in Karakāńś, there will be no fear, but a malefic Drishti will bring death (through serpents).
english translation
ravirAhU yadA svAMze sarpAd bhItiH prajAyate । zubhadRSTau bhayaM naiva pApadRSTau mRtibhavet ॥ 19॥
hk transliteration by Sanscript