Surah 51. Az-Zariyat, Ayah 28

See note [101] on 11:70 .

I.e., with prophethood (cf. 15:53 ).

 As mentioned in 11:69-70, the angels came to Abraham in the form of men and when he offered them food, they did not eat. In ancient Middle Eastern culture, if a guest refused to eat the food provided by their host, it was a sign of ill-will.

 Prophet Isaac (ﷺ).