Sunan Ibn Majah 609
سنن ابن ماجه#609SahihUbayy bin Ka'b said:"That was a concession that was granted in the early days of Islam, then we were commanded to have a bathe after that
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautHasan Sahih
Zubair Ali ZaiSahih
In-book reference: 1:343