Whom does "the people" (al-nās) refer to in this verse?

Imām Ibn al-Jawzī (d. 597/1201) summarized the scholars' opinions in his book "Zād al-Masīr" as follows:

1. All the companions. [Ibn ʿAbbās]
2. ʿAbd Allāh ibn Salām and those Jews who embraced Islām along with him. [Muqātil]
3. Muʿādh ibn Jabal, Saʿd ibn Muʿādh, Usayd ibn Ḥuḍayr, and a group of the notables of the Anṣār enumerated by al-Kalbī.