Sayyiduna Abu Hurairah (may Allah be pleased with him) narrated from the Messenger of Allah (peace and blessings be upon him): "When the strap of the shoe of any one of you breaks, he should not walk wearing the other shoe until he repairs it, and when a dog puts its mouth in the vessel of any one of you, he should wash it seven times."
Hadith Referenceمسند اسحاق بن راهويه / كتاب الطهارة / 90
Hadith Takhrij«مسلم ، كتاب الطهارة ، باب حكم ولوغ الكلب ، رقم : 279 . سنن ابوداود ، رقم : 4137 . سنن نسائي ، رقم : 3570 . مسند احمد : 314/2»
Explanation & Benefits
Hafiz Abdush Shakoor Tirmidhi
Benefits: One should not walk wearing only one shoe; regarding this, see the explanation of Hadith number 72. When a dog puts its mouth into someone's utensil, then pour out its leftover and wash it seven times, the eighth time with earth.