Brihat Samhita
चित्रो अथ वाअपि धूम्रो रविरश्मिर् व्याकुलाम् करोत्य् ऊर्धम् । तस्करशस्त्रनिपातैर्यदि सलिलं नऽशु पातयति ॥ ३-२२ ॥
If the sun (āditya) be variegated in colour or of the colour of smoke there will be either immediate rain or mankind will suffer from robbers and from weapons.
english translation
citro atha vAapi dhUmro ravirazmir vyAkulAm karoty Urdham । taskarazastranipAtairyadi salilaM na'zu pAtayati ॥ 3-22 ॥
hk transliteration by Sanscript