Abu Huraira reported God's messenger as saying, “Men are of
different origins just as gold and silver are; the best among them in
the pre-Islamic period are the best among them in Islam when they are
versed in the religion.” Muslim transmitted it.
Mu'awiya reported God’s messenger as saying, “When God wishes
good for anyone He instructs him in the religion. I am only a distributor; God gives.” (Bukhari and Muslim.)
Narrated Ibn Mas'ud reported God’s messenger as saying, “Two people only
may be envied:
a man to whom God has given property, empowering
him to dispose of it on what is right; and a man to whom God has given
wisdom who acts according to it and teaches it.” (Bukhari and Muslim).
Samura b. Jundub and al-Mughira b. Shu'ba reported God’s messenger as saying, “If anyone relates a tradition from me thinking that
it is false, he is one of the liars.” Muslim transmitted it.