الذين هادوا

Alazeena Haadu literally means those who converted to Hebraism more traditionally equated with Judaism.

Heber (5th generation after Noah's flood) was the father of all Hebrews while the patron prophet of those who converted to Judaism is Abdullah (Obadiah) the Proselyte of Edom who is referred to in the Quranic Materials as Hud of Aad.