The khuff is footwear one wipes instead of washing the foot in ablution. The khuff prevents the state of "lesser hadath" (lesser ritual impurity - the one removed by ablution) from reaching the feet for 24 hours (72 hours for the traveler).
A New Revised and Edited Translation. This book, by the late Indian historian and intellectual, Shaykh Abu ’l-Hasan ‘Ali Nadwi, is a story of the ebbs and flows of this Ummah; the challenges, the setbacks, and most importantly, the successes.
Etiquette of the learner, is a work extracted from Qadi Ibn Jama’ah’s major contribution to the literature of adab : Tadhkirat as-Sami wa'l -Mutakallim fi Adab al-'Alim wa'l -Muta'allim (A Memorandum to the Listener and the Speaker on the Etiquette of the Scholar and the Learner).