31-194 Muhammad ibn Ali Majilawayh - may God be pleased with him - narrated that Ali ibn Ibrahim ibn Hashem quoted on the authority of his father, on the authority of Ali ibn Ma’bad, on the authority of Al-Husayn ibn Khalid, on the authority of Abil Hassan Ali ibn Musa Ar-Ridha’ (a.s.), on the authority of his father (a.s.), on the authority of his forefathers (a.s.), on the authority of Ali (a.s.) that God’s Prophet (S) said, “
One who is a Muslim should not plot and play tricks as I heard Gabriel (a.s.) say: Indeed one who plots and plays tricks will be thrown into the Fire.” God’s Prophet (S) then added, “Whoever fools a Muslim is not from our nation. Whoever cheats a Muslim is not from our nation.” Then God’s Prophet (S) said, “Gabriel - The Holy Spirit descended to me from the presence of the Lord of the Two Worlds and said, “O Muhammad! I advise you to be good-tempered as this will cause the good of this world and the Hereafter. Know that those of you closest in looks to Me are the ones who are the best-tempered.”