"Any one of you who has land, or date palm trees, he should not sell them until he offers them to his partner first."  

أَنَّ النَّبِيَّ ﷺ قَالَ أَيُّكُمْ كَانَتْ لَهُ أَرْضٌ أَوْ نَخْلٌ فَلاَ يَبِعْهَا حَتَّى يَعْرِضَهَا عَلَى شَرِيكِهِ