Charak Samhita
क्रोधप्रवातव्यायामान् कषायांश्च विवर्जयेत्। ज्वरे लङ्घनमेवादावुपदिष्टमृते ज्वरात् ॥१३९॥
anger, direct exposure to wind, exercise, and kashaya (astringent foods). [Contra-indications of langhana (fasting)] Langhana or fasting is prescribed in the initial stage of jwara except those caused by kshaya (consumption),
english translation
krodhapravAtavyAyAmAn kaSAyAMzca vivarjayet। jvare laGghanamevAdAvupadiSTamRte jvarAt ॥139॥
hk transliteration by Sanscript