عَنْ سَمُرَةَ بْنِ جُنْدُبٍ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ مَنْ أَحَاطَ حَائِطًا عَلَى أَرْضٍ فَهِيَ لَهُ
Narrated by Sayyiduna Samurah bin Jundub (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever surrounds a piece of land with a wall, it will belong to him.