What is the ruling if the wife gives one thousand dirhams composed of base metals instead of silver?

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If the wife gives him one thousand dirhams that are base (such as copper or lead), the divorce does not occur because the term 'one thousand' implies one thousand silver dirhams, and these do not contain silver dirhams. If the base payment is excessive such that it contains the equivalent value of one thousand silver dirhams, the divorce occurs because the condition of giving one thousand silver dirhams has been met.