Quran 25:20
And We did not send before you, [O Muḥammad], any of the messengers except that they ate food and walked in the markets. And We have made some of you [people] as trial for others – will you have patience? And ever is your Lord, Seeing.
— Saheeh International
Quran 6:8 - 6:9
And they say, “Why was there not sent down to him an angel?”1 But if We had sent down an angel, the matter would have been decided;2 then they would not be reprieved.
And if We had made him [i.e., the messenger] an angel, We would have made him [appear as] a man, and We would have covered them with that in which they cover themselves [i.e., confusion and doubt].
— Saheeh International