al-Ḥāzimī said: Abū al-Aswad al-Duʾalī is traced back to Duwl ibn Ḥanīfah ibn Lujaym.

Abū al-Yaqẓān remarked: al-Duwl—with ḍamma on the dāl and a still wāw—is a branch of Bakr ibn Wāʾil. They are numerous; among them is Farwah ibn Nufāthah, who governed part of Greater Syria in the pre-Islamic era.

Yūnus claimed that al-Duwl was a woman from Kinānah and that her descendants form the clan of Abū al-Aswad. As for the sons of ʿAdiyy ibn al-Duwl, they are many in the Ḥijāz; one of them is ʿAmr ibn Jandal, the father of Abū al-Aswad Ẓālim, whose mother belonged to Banū ʿAbd al-Dār ibn Quṣayy.

Ibn Ḥabīb said: within the tribe of ʿAnzah is al-Duwl ibn Saʿd Manāh, and within Ḍabbah is al-Duwl ibn Jall.

Abū Muḥammad Ibn Qutaybah (1) stated: al-Duwl is found among Banū Ḥanīfah, whereas al-Dīl (2) belongs to Banū ʿAbd al-Qays. Al-Duʾl, spelled with a hamzah, is in Kinānah; among them is Abū al-Aswad al-Duʾalī.

Abū ʿAlī al-Ghassānī (3) said: Abū al-Aswad is called al-Duʾalī, on the pattern of al-ʿUmari—this is how the Basrans pronounce it—being affiliated with Duʾal, a clan of Kinānah.

ʿĪsā ibn ʿUmar pronounced the name with a kasrah, true to its original form, while a number of people used to say al-Dīlī.

Ibn Fāris said: al-Duʾalī—with ḍamma on the dāl and fatḥah on the hamzah—is a tribe of Kinānah, whereas al-Duʾil—with a kasrah on the hamzah—occurs among ʿAbd al-Qays.

Abū ʿAbd Allah al-Bukhārī held that al-Dīl is among Banū Ḥanīfah and al-Duwl among Kinānah.

Muḥammad ibn Sallām al-Jumaḥī (4) asserted that Abū al-Aswad is al-Duʾilī, with ḍamma on the dāl and kasrah on the hamzah.

Al-Mubarrad (5) explained that the correct form has ḍamma on the dāl and fatḥah on the hamzah, deriving from duʾil with a kasrah, a term denoting a beast of burden. Speakers avoided successive kasrahs, just as they say al-Namari for al-Namir.