Astanga Hrudaya
चाया विवर्तते यस्य स्वप्नेऽपि प्रेत एव सः । आतपादर्शतोयादौ या संस्थानप्रमाणतः ॥ ४२ ॥
size, colour, or brilliance even in dreams (more so at other times) is a dead man. Meaning of pratichaya & chaya: The form emanating from by the body (or its parts) having the (natural) features and size,
english translation
cAyA vivartate yasya svapne'pi preta eva saH । AtapAdarzatoyAdau yA saMsthAnapramANataH ॥ 42 ॥
hk transliteration by Sanscript