Be mindful and careful with your ritual purity

This hadith discusses the permissibility of wiping over leather socks when one's feet are ritually pure. It is narrated by Yahya from Malik that Nafi and Abdullah ibn Dinar told him that Abdullah ibn Umar arrived at Kufa and went to Sad ibn Abi Waqqas who was the Amir of Kufa at that time. When he saw Sad wiping over his leather socks he disapproved of it so Sad asked him to ask his father when he returned home. When Abdullah returned home he forgot to ask his father until Sad reminded him again. When asked about this matter Umar said that if one's feet were ritually pure when they put them in the leather socks then they can wipe over them even if they have just come from relieving themselves. This hadith teaches us that we should be mindful and careful with our ritual purity as it is a prerequisite for performing certain acts such as wiping over our leather socks in order to maintain cleanliness and hygiene according to Islamic teachings.