Imam Ibnul Qayyim (rahimahullaah) stated in Al Fawaa-id (page 225) that Ibn Sad (rahimahullaah) stated in At Tabaqaat about Umar Ibn Abdul Azeez (rahimahullaah): Whenever he delivered a sermon and feared being amazed with himself, he would end it. And whenever he wrote a letter and feared amazement by way of it; he would tear it. And he would say: ”O Allaah! I seek refuge with you from the evil of my soul.”