Charak Samhita
वसन्ते श्लेष्मजा रोगाः शरत्काले तु पित्तजाः । वर्षासु वातिकाश्चैव प्रायः प्रादुर्भवन्ति हि ॥३०९॥
In general, kaphaja disorders are manifested in vasanta ritu, pittaja disorders appear during sharada ritu and vataja disorders manifest during varsha ritu.
english translation
vasante zleSmajA rogAH zaratkAle tu pittajAH । varSAsu vAtikAzcaiva prAyaH prAdurbhavanti hi ॥309॥
hk transliteration by Sanscript