The ruling of the commentary ruled (Rish C. Tsev) that if he can set himself a horseshoe it is permissible, and if he cannot set himself a horseshoe, if he started with a permit he can finish, and if he did not start with a permit the commentary remains doubtful and not conclusive.
And in fact, in the case where the explanation was satisfied, the Halachah, if the shame is great and there is no other choice, it should be lightened, since there is the respect of humanity and a spurned doubt here.
(Also in the second thread of the GRANAK M.S.C. regarding the depreciation).
And yet in a way that is satisfied whether he can stand up for himself or not and there is only sufficient doubt here, in such a way he should certainly be allowed to do so.
Putting himself on a horse means that if he tries to wait for a walking class for 72 minutes without going out to relieve himself, he will succeed in doing so.
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