Sahih al-Bukhari 886
صحيح البخاري#886SahihNarrated `Abdullah bin `Umar:`Umar bin Al-Khattab saw a silken cloak (being sold) at the gate of the Mosque and said to Allah's Apostle, "I wish you would buy this to wear on Fridays and also on occasions of the arrivals of the delegations." Allah's Messenger (ﷺ) replied, "This will be worn by a person who will have no share (reward) in the Hereafter." Later on similar cloaks were given to Allah's Messenger (ﷺ) and he gave one of them to `Umar bin Al-Khattab. On that `Umar said, "O Allah's Messenger (ﷺ)! You have given me this cloak although on the cloak of Atarid (a cloak merchant who was selling that silken cloak at the gate of the mosque) you passed such and such a remark." Allah's Messenger (ﷺ) replied, "I have not given you this to wear". And so `Umar bin Al-Khattab gave it to his pagan brother in Mecca to wear
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 11:11