وجوز فيه ما تراضى عليه الزوجان كما ذكره الشافعي
It was allowed at an amount agreed upon by the spouses, as attributed here to al-Shafiʿi.
The Shafiʿi school does not set ten dirhams as a fixed minimum mahr. A legally valid agreed monetary or valuable consideration may count under its relevant rules.
The precise dispute:
The Hanafi argument emphasizes a legally prescribed minimum supported through its evidence.
The Shafiʿi argument places weight on the nature of mahr as a financial consideration and on contractual agreement.
Neither side is denying the obligation of mahr in principle. The disagreement concerns its minimum specified amount.