And lo! Thy Sustainer said unto the angels: "Behold, I am about to create mortal man out of sounding clay, out of dark slime transmuted;
Al-Hijr (The Rocky Tract) Verse 28
Some people asked Allah's Apostle, "Whose Islam is the best? i.e. (Who is a very good Muslim)?" He replied, "One who avoids harming the Muslims with his tongue and hands."
Volume 1, Book 2, Number 10