(80) باب بَيْعِ الْمَشَاعِ
it was narrated that Jabir said:
"The Messenger of Allah said: 'Pre-emption is to be given in everything that is shared, whether it is a house or a garden. It is not right to sell it before informing one's partner, and if he sells it he (the partner) has more right to it, unless he gives Permission to sell it to someone else.
Reference: Sunan an-Nasa'i 4646
In-book reference: Book 44, Hadith 198
English translation: Vol. 5, Book 44, Hadith 4650