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

1. It refers to their progeny. [Mujāhid, al-Farrāʾ]
2. It refers to the people of Makkah as mentioned in the phrase "and give provision to its people". 

\
The messenger that they prayed for is Muḥammad (ﷺ).

To whom does the pronoun refer to in "Send among them a messenger"?

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

1. He takes *zakāh* from them and purifies them thereby.[Ibn ʿAbbās, al-Farrāʾ]
2. He purifies them from polytheism and disbelief. [Muqātil]
3. He calls them to that by which they will become pure.

What is meant by "and he purifies them" (*wa yuzakkīhim*) in this āyah?