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.

Narrated by Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: No person should prevent his neighbor from placing a beam or the like in his wall.

It is also narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: If any of you has a neighbor who seeks permission to drive a piece of wood into his wall, he should not prevent him. When Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated this hadith to the people, they lowered their heads. Seeing this, Sayyiduna Abu Hurairah (may Allah be pleased with him) said: It seems to me that you are turning away from this command. By Allah! I will drive that piece of wood into your shoulders.

It is narrated from ‘Ikrimah bin Salamah that there were two brothers from Banu Mughira. One of them swore an oath to free a slave and said that he would not allow his neighbor to place a beam in his wall. Then, when both of them met Sayyiduna Majma‘ bin Yazid Ansari (may Allah be pleased with him) and several Companions, they said: We testify that the Messenger of Allah (peace and blessings be upon him) said: A neighbor should not prevent his neighbor from placing a beam or the like in his wall. Upon hearing this, the one who had sworn the oath said: O my brother! I have realized that this decision will be against me and in your favor, while I have also sworn an oath. Now, you may build a pillar next to my wall. So he did so, and then placed wood on the pillar. ‘Amr said to me: I had seen this thing.