Sahih Muslim 4454
صحيح مسلم#4454SahihAnas b. Malik reported that Allah's Apostle (ﷺ) gave a beating with palm branches and shoes, and that Abu Bakr gave forty lashes. When Umar (became the Commander of the Faithful) and the people went near to pastures and towns, he said (to the Companions of the Holy Prophet). What is your opinion about lashing for drinking? Thereupon Abd al-Rahman b. Auf said:My opinion is that you fix it as the mildest punishment. Then 'Umar inflicted eighty stripes
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: 29:57