Astanga Hrudaya
तैलं त्वरायां शीतेऽपि घर्मेऽपि च घृतं निशि। निश्येव पित्ते पवने संसर्गे पित्तवत्यपि॥१३॥
Oil may be used in emergency even in cold season and ghee, even in summer and even at night. In diseases produced by increased Pitta and Vata and in their combination with predominance of Pitta – ghee should be used only at nights – during summer.
english translation
tailaM tvarAyAM zIte'pi gharme'pi ca ghRtaM nizi। nizyeva pitte pavane saMsarge pittavatyapi॥13॥
hk transliteration by Sanscript