ما هو رأي المذهب الحنبلي في اغتسال المرأة ذات الشعر الطويل بعد الجماع؟

The Hanbali school of thought holds that a woman must undo her hair when performing ghusl (ritual bath) after menstruation, but not after seminal discharge (janabah). The four Imams agreed with them on the non-obligation of undoing it after janabah, citing the hadith of Umm Salamah. As for undoing it after menstruation, there is a difference of opinion. Some made it obligatory to ensure water reaches the hair roots and based on other hadiths, while the majority considered it recommended, due to the hadith of Umm Salamah which encompassed both menstruation and janabah in negating the obligation, and the hadith of Asma' which did not mention undoing the hair, and because there is no difference between menstruation and janabah regarding the obligation of water reaching the body.