And the Noble Prophet (peace and blessings be upon him) said: Whoever receives a wound in the path of Allah, he will come on the Day of Resurrection with it fresh 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 / 8981