Sahih Muslim 571
صحيح مسلم#571SahihIn the hadith transmitted by Shu'ba these words are not there:" Complete the Wudu," and there is the name of Abu Yahya al-A'raj (a narrator)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 2:38