Ill-temper

This vice is also caused by anger, and its opposite is good-temperedness. This vice causes people to shun someone who possesses it, and brings him ruin in this world and the next. It also destroys all of one's good works. The Prophet (S) has been quoted as saying:

Ill-temper ruins good works, just as vinegar ruins honey.

Addressing the Prophet (S), the Quran says:

Surely thou art of a mighty morality. (68:4)

Adapted from: "Jami' al-Sa'adat" by: "Muhammad Mahdi al-Naraqi"