Is a relationship required between the substitute and the thing being substituted in the case of a mistaken substitution?
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The questioner : In the case of a mistaken substitution, is it required that the substitute have a relationship to the thing being substituted?
The Shaykh : No, no, it is not required.
The questioner : Does the horse have any relationship to Zayd?
The Shaykh : No, it has no relationship to Zayd, because if it had been his horse, it would have been a substitution of inclusion. It has no relationship. For this reason, if I said, "I bought a book for an hour," this is also a mistaken substitution. But if it was intentional—as Ibn Malik said—if it was intentional, it is a shift of topic, and if it was unintentional, it is a mistake. Yes, Muhammad?
The Shaykh : No, no, it is not required.
The questioner : Does the horse have any relationship to Zayd?
The Shaykh : No, it has no relationship to Zayd, because if it had been his horse, it would have been a substitution of inclusion. It has no relationship. For this reason, if I said, "I bought a book for an hour," this is also a mistaken substitution. But if it was intentional—as Ibn Malik said—if it was intentional, it is a shift of topic, and if it was unintentional, it is a mistake. Yes, Muhammad?