What is the ruling on harming a neighbor, is it obligatory to be patient with his harm, and what is the ruling on making du'a' (supplication) against him?

Question:
May Allah bless you, Shaykh. We are taking a call from Sister Umm Muhammad. Please, Sister Umm Muhammad. Peace be upon you. And upon you, peace. By Allah, O honorable Shaykh, I just have a question, may Allah preserve you. Please, let me tell you. We live on the third floor, and our neighbors are Syrians. All day long they make noise, and the birds run around until the middle of the night. So I sit and recite the dhikr (remembrance of Allah), saying, "Allah is sufficient for me, and He is the best Disposer of affairs" regarding them. Do I have a sin? And sometimes, out of my anger, I make du'a' against them like this. May Allah bless you, O Umm. The question is clear. Thank you.

Answer:
Before making du'a' against them, if you had advised them and explained to them the harm their children are causing, perhaps they would have stopped them from bothering you. If that does not suffice and they continue with this, then there is an authority that can stop the aggressor. You should first advise them and be kind to the neighbor as much as possible. If he persists in harming his neighbor, then there is an authority to whom one can turn in this matter.