Sunan an-Nasa'i 4704
سنن النسائي#4704SahihIt was narrated from Abu Salamah that the Messenger of Allah said:"Pre-emption takes effect in all cases where land has not been divided. But if the boundaries have been sent, and the roads lay out, then there is no pre-emption
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
In-book reference: 44:256