AND MUHAMMAD is only an apostle; all the [other] apostles have passed away before him: if, then, he dies or is slain, will you turn about on your heels? But he that turns about on his heels can in no wise harm God - whereas God will requite all who are grateful [to Him].

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."