the Messenger of Allah (ﷺ) ruled concerning preemption of land that has not been divided; if the boundaries have been set then there is no preemption.
Sunan Ibn Majah Book 17, Hadith 6
← Previous Hadith “I said: 'O Messenger of Allah, (what do you think of) land owned by only one person but this land has neighbors?' He said: 'The neighbor has more right to property that is near.' ”

Sunan Ibn Majah Book 17, Hadith 5 Next Hadith → Another chain narrates a hadith similar to the previous one.

Sunan Ibn Majah Book 17, Hadith 7