Ibn Umar saw Saad bin Malik wiping over his leather socks and said, "You actually do this?"Saad replied, "Yes."The two of them then met before Umar , and Saad said, "Commander of the Believers, give my nephew a ruling on wiping over leather socks."Umar
said, "When we were with our Prophet ﷺ, we used to wipe over our leather socks."Ibn Umar
asked, "Even if one came from relieving himself, whether stool or urine?"Umar
answered, "Yes, even if one came from relieving himself, whether stool or urine."Nafi said, After that, Ibn Umar would wipe over them as long as he had not removed them, and he did not set any time limit for it.I mentioned this to Muamar, and he said, "Ayub narrated the same thing to me from Nafi."
حدثنا عبد الرزاق أنبأنا عبيد الله بن عمر
رأى ابن عمر سعد بن مالك يمسح على خفيه فقال ابن عمر وإنكم لتفعلون هذا فقال سعد نعم فاجتمعا عند عمر رضي الله عنه فقال سعد يا أمير المؤمنين أفت ابن أخي في المسح على الخفين فقال عمر رضي الله عنه كنا ونحن مع نبينا ﷺ نمسح على خفافنا فقال ابن عمر رضي الله عنه وإن جاء من الغائط والبول فقال عمر رضي الله عنه نعم وإن جاء من الغائط والبول قال نافع فكان ابن عمر بعد ذلك يمسح عليهما ما لم يخلعهما وما يوقت لذلك وقتا فحدثت به معمرا فقال حدثنيه أيوب عن نافع مثله
Its isnad is sahih. See 87, 88, 128, 193. Saad bin Malik is Saad bin Abu Waqqas. "Fajtamaa" (so they met) appears in J and H as "fajtamana" (so we met), which is an error. The sahih reading is from L, because Nafi did not meet Umar. The one who says "so I related it to Maamar," etc., is Abdul-Razzaq.