Charak Samhita
खात् पतत्सोमवाय्वर्कैःस्पृष्टंकालानुवर्तिभिः। शीतोष्णस्निग्धरूक्षाद्यैर्यथासन्नंमहीगुणैः ॥१९७॥
While falling from the sky it is influenced by the effects of the seasonal courses of the moon, the wind and the sun. When is has fallen on the earth, it is affected by the qualities of the earth on which it falls and these could be cold, hot, viscid, dry, etc.
english translation
khAt patatsomavAyvarkaiHspRSTaMkAlAnuvartibhiH। zItoSNasnigdharUkSAdyairyathAsannaMmahIguNaiH ॥197॥
hk transliteration by Sanscript