صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب تطهير الثياب بالغسل من الأنجاسChapters on Purifying Clothes from Impurities
(226) بَابُ ذِكْرِ وَطْءِ الْأَذَى الْيَابِسِ بِالْخُفِّ وَالنَّعْلِ،Chapter 226: Stepping on dry filth with shoes or sandals
Hadith Q292
وَالدَّلِيلُ عَلَى أَنَّ ذَلِكَ لَا يُوجِبُ غَسْلَ الْخُفِّ وَلَا النَّعْلِ، وَأَنَ تَطْهِيرَهُمَا يَكُونُ بِالْمَشْيِ عَلَى الْأَرْضِ الطَاهِرَةِ بَعْدَهَا
And the explanation of the evidence that stepping on impurity does not make it obligatory to wash the socks and shoes, and their purification will be achieved by walking on clean ground after that (impurity).
