Brihat Samhita
शतभिषगाश्लेषाआर्द्रास्वातिमघासंयुतः शुभो गर्भः । पुष्णाति बहून्दिवसान्हन्त्युत्पातैर्हतस्त्रिविधैः ॥ २१-२९ ॥
Clouds that conceive when the Moon is in the asterisms of Śatabhiṣaj, Āśleṣā, Ārdrā, Svāti and Maghā will yield rain continuously for several days unless the pregnancy should have suffered in any of the ways stated above.
english translation
zatabhiSagAzleSAArdrAsvAtimaghAsaMyutaH zubho garbhaH । puSNAti bahUndivasAnhantyutpAtairhatastrividhaiH ॥ 21-29 ॥
hk transliteration by Sanscript