It is narrated from Sa'id bin al-Musayyib and Abu Salamah bin 'Abdur Rahman that the Messenger of Allah, peace and blessings be upon him, ordered the right of pre-emption (shuf'ah) in that property among partners which has not been divided. When it is divided and boundaries are established, then there is no right of pre-emption in it.
Imam Malik, may Allah have mercy on him, said: This is the ruling according to us, and there is no difference of opinion in it.