Madrasatan with tāʾ marbūṭa generally ends in a pause h sound (madrasah), not the long ā heard in ordinary accusative tanwīn on Zaydan.
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Pausing on Tāʾ Marbūṭa
Tanwīn: Five Types, Their Function, and Omission
Madrasatan with tāʾ marbūṭa generally ends in a pause h sound (madrasah), not the long ā heard in ordinary accusative tanwīn on Zaydan.