Sunan Abi Dawud, Hadith 3072 ⓘ
Hisham said “The unjust vein means that a man implants a tree in the land of another man so that they may be entitled to it. Malik said “The unjust vein means that a man takes (a thing) digs a pit and implants a tree without (his) right.
حَدَّثَنَا أَحْمَدُ بْنُ عَمْرِو بْنِ السَّرْحِ، أَخْبَرَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي مَالِكٌ، قَالَ هِشَامٌ الْعِرْقُ الظَّالِمُ أَنْ يَغْرِسَ الرَّجُلُ فِي أَرْضِ غَيْرِهِ فَيَسْتَحِقَّهَا بِذَلِكَ . قَالَ مَالِكٌ وَالْعِرْقُ الظَّالِمُ كُلُّ مَا أُخِذَ وَاحْتُفِرَ وَغُرِسَ بِغَيْرِ حَقٍّ .
also referenced under: Hadith 3078 (DarusSalam)