It was narrated that, Abdur-Rahman Al-A'raj said: "I heard Abu Hurairah narrating that the Prophet said: 'When anyone of you asks his neighbor for permission to fix a piece of wood to his wall, he should not refuse him. When Abu Hurairah told them this, they lowered their heads, and when he saw them he said: 'Why do I see you turning away from it? By Allah, I will force you to accept it."