Sunan an-Nasa'i 4494
سنن النسائي#4494SahihIt was narrated that Anas said:"It was forbidden to us for a town-dweller to sell for a desert-dweller." (Sahih)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 44:46