Astanga Hrudaya
उदरं दक्षिणावर्तगूढनाभि समुन्नतम्। तनुरक्तोन्नतनखं स्निग्धमाताम्रमांसलम्॥११२॥
The abdomen should have the umbilicus with a right whirl, deep and bulged even. The nails should be thin, red, elevated, unctuous (smooth), coppery-red all over and muscular,
english translation
udaraM dakSiNAvartagUDhanAbhi samunnatam। tanuraktonnatanakhaM snigdhamAtAmramAMsalam॥112॥
hk transliteration by Sanscript