Sunan Abi Dawud 1946
سنن أبي داود#1946SahihNarrated Abu Hurairah:Abu Bakr sent me among those who proclaim at Mina that no polytheist should perform Hajj after this year and no naked person should go round the House (the Ka'bah), and that the day of greater Hajj is the day of sacrifice, and the greater Hajj is the Hajj
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 (3177) Sahih Muslim (1347)
In-book reference: 11:226