Sunan Abi Dawud 162
سنن أبي داود#162Da'ifNarrated Ali ibn AbuTalib: If the religion were based on opinion, it would be more important to wipe the under part of the shoe than the upper but I have seen the Messenger of Allah (ﷺ) wiping over the upper part of his shoes
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiDaif
In-book reference: 1:162