Hadith 513980
Chapter 35: Pre-emption in Property - كتاب الشفعة
قَالَ مَالِكٌ إِنَّهُ بَلَغَهُ أَنَّ سَعِيدَ بْنَ الْمُسَيَّبِ سُئِلَ عَنِ الشُّفْعَةِ هَلْ فِيهَا مِنْ سُنَّةٍ فَقَالَ نَعَمْ الشُّفْعَةُ فِي الدُّورِ وَالأَرَضِينَ وَلاَ تَكُونُ إِلاَّ بَيْنَ الشُّرَكَاءِ .
Malik said that he heard that Said ibn al-Musayyab, when asked about pre-emption and whether there was a sunna in it, said, "Yes. Pre-emption is in houses and land, and it is only between partners."
Reference Muwatta Malik 513980
USC-MSA web (English) reference : Book 35, Hadith 2