MAKE due allowance for man's nature, and enjoin the doing of what is right; and leave alone all those who choose to remain ignorant.
Al-A'raf (The Heights) Verse 199
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