IF ANY OF THE FOLLOWING PARTS ARE LEFT OUT, YOUR WUDHU IS INVALID ACCORDING THE HANAFI MAZHAB, IF EVEN ONE HAIR OUT OF THE FOLLOWING IS LEFT OUT, YOUR WUDHU IS INVALID,
1. FACE:
EAR TO EAR, FROM WHERE THE HAIR STARTS GROWING ON THE HEAD, TILL BELOW THE CHIN COVERING THE WHOLE FACE.
2.HANDS:
TILL THE ELBOW
3.MASAH:
WIPING WITH WET HANDS OF QUARTER OF THE HEAD
4.FEET:
TILL THE ANKLE, COVERING THE ANKLE