Sunan an-Nasa'i 4500
سنن النسائي#4500SahihIt was narrate from Ibn Tawus, from his father, that Ibn 'Abbas said; "The Messenger of Allah forbade meeting the riders, and for a town-dweller." I said to Ibn 'Abbas:"What does a town-dweller (selling) for a desert-dweller mean?" he said: "He should not act as a broker for him
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 ZaiSahih - Agreed Upon
In-book reference: 44:52