عَنِ ابْنِ مَسْعُودٍ رَضِيَ اللَّهُ عَنْهُ قَالَ قُلْتُ يَا رَسُولَ اللَّهِ أَيُّ الظُّلْمِ أَعْظَمُ قَالَ ذِرَاعٌ مِنَ الْأَرْضِ يَنْتَقِصُهُ مِنْ حَقِّ أَخِيهِ فَلَيْسَتْ حَصَاةٌ مِنَ الْأَرْضِ أَخَذَهَا إِلَّا طُوِّقَهَا يَوْمَ الْقِيَامَةِ إِلَى قَعْرِ الْأَرْضِ وَلَا يَعْلَمُ قَعْرَهَا إِلَّا الَّذِي خَلَقَهَا
It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him), he says: I asked, "O Messenger of Allah! Which oppression is the greatest?" You (peace and blessings be upon him) said: "A piece of land, which a man snatches from his brother's right. Whoever seizes even as much land as a pebble in this way, on the Day of Resurrection, he will be made to wear a collar reaching to the depths of the earth, and no one knows the depth of the earth except the One who created it."