Imam Ibnul Qayyim (rahimahullaah) states in Al Fawaa-id that Ibn Sad (rahimahullaah) mentions in At Tabaqaat about Umar Bin Abdul Azeez (rahimahullaah) that:

Whenever he delivered a khutbah on the mimbar, and feared being amazed by himself; he would terminate it (i.e. the khutbah)

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 in you from the evil of my nafs.’

Source: Al Fawaa-id of Imaam Ibnul Qayyim (rahimahullaah) (page: 225)

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