Sahih al-Bukhari 4902
صحيح البخاري#4902SahihNarrated Zaid bin Arqam:When `Abdullah bin Ubai said, "Do not spend on those who are with Allah's Messenger (ﷺ)," and also said, "If we return to Medina," I informed the Prophet (ﷺ) of his saying. The Ansar blamed me for that, and `Abdullah bin Ubai swore that he did not say. I returned to my house and slept. Allah's Messenger (ﷺ) then called me and I went to him. He said, "Allah has confirmed your statement." The Verse: "They are the one who say: Spend nothing......(63.7) was revealed
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: 65:422