We mentioned that the condition of a thing is that which, if it is absent, results in the absence of the thing, but if it is present, does not necessarily result in the presence of the thing. So, regarding the invalid condition in a sale, its absence results in the presence of the sale. How did we say that

The Shaykh : He says: We mentioned that the condition of a thing is that which, if it is absent, results in the absence of the thing, but if it is present, does not necessarily result in the presence of the thing. So, regarding the invalid condition in a sale, its absence results in the presence of the sale. The invalid condition in a sale, because the condition... alone is also one of the categories of conditions in a sale, even though the condition alone is invalid and the sale is valid. What is the answer? Our brother confused the difference between the condition in a sale and the condition of a sale. The condition whose presence results in the presence of the thing is the condition of the sale. And we have mentioned the difference between the conditions of a sale and the conditions in a sale.