Surah 39. Az-Zumar, Ayah 56

Whenever there is no clear indication that the term nafs has another meaning, it signifies a "human being"; hence, the personal pronouns relating to this term (which is feminine in Arabic) are masculine in my rendering.

Many kinds of sighs and regrets will then assail us. In the first place, we shall see our shortcomings: we were negligent when we should have been serious: we mocked when we should have tried to learn and understand. But it will be too late then to retrieve our position.