Muwatta Malik, Book 36, Hadith 32 (USC-MSA)

Malik related to me from Ibn Shihab from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "No one should prevent his neighbour from fixing a wooden peg in his wall." Then Abu Hurayra said, "Why do I see you turning away from it? By Allah! I shall keep on at you about it."

وَحَدَّثَنِي مَالِكٌ، عَنِ ابْنِ شِهَابٍ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ لاَ يَمْنَعُ أَحَدُكُمْ جَارَهُ خَشَبَةً يَغْرِزُهَا فى جِدَارِهِ ‏" ‏ ‏.‏ ثُمَّ يَقُولُ أَبُو هُرَيْرَةَ مَا لِي أَرَاكُمْ عَنْهَا مُعْرِضِينَ وَاللَّهِ لأَرْمِيَنَّ بِهَا بَيْنَ أَكْتَافِكُمْ ‏.‏

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also referenced under: Book 36, Hadith 1436 (In-Book)