Good Character
The following ahadeeth are from Ibn Hajr al-Asqalaanee’s Bulooghul-Maram (Attainment of the Objective according to Evidence of the Ordinances–page 480+ in the English translation). They touch on the importance of good Islamic character: being truthful, avoiding lying, the evil of a suspicious mind, heedlessness, not protecting each other’s honour, etc.
As a good reminder to the sincere heart, even if you have been blessed with guidance to the Sunnah and hold yourself to be from Ahlul-Haqq, the Shaytaan will not leave you alone.