It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "When you differ regarding the measurement of a pathway, make it seven cubits, and whoever builds a structure should make a pillar with his neighbor's wood (so that his building does not collapse)."
Hadith Referenceمسند احمد / ومن مسند بني هاشم / 2098
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف، رواية سماك عن عكرمة مضطربة.