It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Whoever receives a wound in the way of Allah, he will come on the Day of Resurrection with it fresh, just as it was on the day it was inflicted; its color will be like blood, but its fragrance will be like musk.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 10653