Al-Jann

In the tradition cited, the Jann are described as a pre‑Adamite people who inhabited the earth before Adam and function as the ancestor of the jinn. The account records a ruler among them named Jann ibn Jann and notes that "the father of the jinn is also called Abu Al-Jann." Folkloric variants reported in the source state that many consider the Jann to have been punished and turned into the weakest class of jinn, a motif of demotion or transformation used to explain the later status of jinn (Source: Wikipedia: Al-Jann).

The provided source does not supply a reliable physical description for the Jann; no details on form, size, color, or bodily traits are attested in the cited material (Source: Wikipedia: Al-Jann).

The cited material does not record specific powers, habitual behaviors, or modes of interaction with humans for the Jann beyond their genealogical relationship to jinn and the folkloric statement that many consider them to have been punished and turned into the weakest class of jinn. No explicit abilities are described in the available source (Source: Wikipedia: Al-Jann).