Neighbours tree cracking the boundary wall

Q. The tree of a neighbour is cracking the boundary wall. I have asked for its removal, but the neighbour refuses. What should I do?

A. Although it is incumbent on the neighbour to remove the tree which is cracking the wall, there is really nothing you can do other than having Sabr (patience). Tolerating the indiscretion and inconvenience created by a neighbour is meritorious. The thawaab for such Sabr is great.