Is there a maximum limit for the dower (sadaq)?

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There is no stipulated maximum limit for the dower, by the consensus of the people of knowledge, as stated by Ibn Abd al-Barr. Evidence for this is found in the verse: {And if you wish to exchange a wife in place of another and you have given one of them a குவிンtār (a large amount), take nothing back from it} (Quran 4:20). Furthermore, it is reported that 'Umar gave Umm Kulthum bint 'Ali a dower of forty thousand, and that he intended to prohibit excessive dowers upon remembering this verse.