عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُمَا أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ لَا يَمْنَعُ أَحَدُكُمْ أَخَاهُ مَرْفَقَهُ أَنْ يَضَعَهُ عَلَى جِدَارِهِ
Narrated by Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him) said: No person should prevent his (neighbor) brother from placing something beneficial, i.e., (wood or the like) on the wall.