وَلَا خُفَّيْنِ، إِلَّا أَنْ لَا يَجِدَ النَّعْلَيْنِ، فَيَقْطَعَهُمَا أَسْفَلَ مِنَ الْكَعْبَيْنِ.
Translation: Nor should the pilgrim wear leather khuffs, unless suitable sandals are unavailable; then the khuffs are cut below the ankles.
Khuffayn are traditional leather foot-coverings, while naʿlayn indicates sandals. Al-Quduri states an exception when sandals cannot be obtained: the khuffs are cut below ankle level.
This is the classical text’s formulation. Particular modern footwear, medical needs, or contemporary applied fatwas call for separate assessment.