The Book of Transactions
حَدَّثَنَا حَسَنُ بْنُ عَلِيٍّ الْحُلْوَانِيُّ، حَدَّثَنَا أَبُو تَوْبَةَ، حَدَّثَنَا مُعَاوِيَةُ، عَنْ يَحْيَى بْنِ، أَبِي كَثِيرٍ عَنْ أَبِي سَلَمَةَ بْنِ عَبْدِ الرَّحْمَنِ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ كَانَتْ لَهُ أَرْضٌ فَلْيَزْرَعْهَا أَوْ لِيَمْنَحْهَا أَخَاهُ فَإِنْ أَبَى فَلْيُمْسِكْ أَرْضَهُ " .Abu Huraira (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying:He who has land should cultivate it or lend it to his brother, but if he refuses, he should retain his land
From Sahih Muslim, whose reports the scholars accept as authentic.