Brihat Samhita
ग्रीष्मे रक्तो भयकृद्वर्षास्वसितः करोत्यनावृष्टिम् । हेमन्ते पीतो अर्कः करोति न चिरेण रोगभयम् ॥ ३-२६ ॥
If, in Grīṣma, the sun be of blood colour mankind will be afflicted with various fears; If, in Varṣā, he be black there will be drought on the Earth; If, in Hemanta he be yellow there will be immediate fear from disease.
english translation
grISme rakto bhayakRdvarSAsvasitaH karotyanAvRSTim । hemante pIto arkaH karoti na cireNa rogabhayam ॥ 3-26 ॥
hk transliteration by Sanscript