Narrated `Abdullah bin Mas`ud: The Prophet said, Do not wish to be like anyone except in two cases. (The first is) A person, whom Allah has given wealth and he spends it righteously; (the second is) the one whom Allah has given wisdom (the Holy Qur'an) and he acts according to it and teaches it to others. (Fath-al-Bari page 177 Vol. 1)