Sunan Abi Dawud 1874
سنن أبي داود#1874SahihIbn ‘Umar said I have not seen the Apostle of Allaah(ﷺ) touching anything in the House (the Ka’bah) but the two Yamani corners
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 ZaiSahih Bukhari (1609) Sahih Muslim (1267)
In-book reference: 11:154