The ruling on stipulating that a worker must build a wall within a specific period

Question:
He says: Honorable Shaykh, may Allah grant you success, if I hire a worker to build a wall for me and I stipulate a specific period for him, out of fear of his laxity, manipulation, and delay, is that permissible for me?

Answer:
You hired him now to build a wall; specifying a time limit for the construction is not appropriate, because the work varies. If his delay is due to his negligence and carelessness, you may hold him accountable for it. But if the delay in building the wall is because the construction requires that time and he did not fall short in anything, you have no recourse against him. Yes.