Good character, modesty, controlling anger and excellence in all things.
On the authority of Abu Hurayrah (may Allah be pleased with him) who said: The Messenger of Allah (peace and blessings of Allah be upon him) said, “Part of the perfection of one’s Islam is his leaving that which does not concern him.”
On the authority of Abu Hurayrah (may Allah be pleased with him), that the Messenger of Allah (peace and blessings of Allah be upon him) said: Let him who believes in Allah and the Last Day speak good, or keep silent; and let him who believes in Allah and the Last Day be generous to his neighbour; and let him who believes in Allah and the Last Day be generous to his guest. [Al-Bukhari]
On the authority of Abu Hurayrah (may Allah be pleased with him): A man said to the Prophet (peace and blessings of Allah be upon him), “Counsel me,” so he (peace and blessings of Allah be upon him) said, “Do not become angry.” The man repeated [his request for counsel] several times, and [each time] he (peace and blessings of Allah be upon him) said, “Do not become angry.”
About this text. Arabic and English text from the hadith-api project (github.com/fawazahmed0/hadith-api), editions ara-nawawi and eng-nawawi, released into the public domain under the Unlicense. References and gradings are Imam an-Nawawi's own, as they appear in the text.