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.
Sahih al-Bukhari Book 65, Hadith 422
← Previous Hadith I was with my uncle and I heard `Abdullah bin Ubai bin Salul, saying, "Don't spend on those who are with Allah's Messenger (ﷺ) that they may disperse and go away from him." He also said, "If we return to Medina, surely, the more honorable will expel the meaner." So I informed my uncle of that and then my uncle informed Allah's Messenger (ﷺ) thereof. Allah's Messenger (ﷺ) sent for `Abdullah bin Ubai and his companions. They swore that they did not say anything of that sort Allah's Messenger (ﷺ) deemed their statement true and rejected mine. Thereof I became as distressed as I have never been before, and stayed at home. Then Allah revealed (Surat Al-Munafiqin): 'When the hypocrites come to you.....(63.1) They are the ones who say: Spend nothing on those who are with Allah's Messenger (ﷺ) ..(63.7) Verily the more honorable will expel therefrom the meaner..' (63.7-8) Allah's Messenger (ﷺ) sent for me and recited that Sura for me and said, "Allah has confirmed your statement."

Sahih al-Bukhari Book 65, Hadith 421 Next Hadith → We went out with the Prophet (ﷺ) : on a journey and the people suffered from lack of provisions. So `Abdullah bin Ubai said to his companions, "Don't spend on those who are with Allah's Messenger (ﷺ), that they may disperse and go away from him." He also said, "If we return to Medina, surely, the more honorable will expel therefrom the meaner. So I went to the Prophet (ﷺ) and informed him of that. He sent for `Abdullah bin Ubai and asked him, but `Abdullah bin Ubai swore that he did not say so. The people said, "Zaid told a lie to 'Allah's Messenger (ﷺ)." What they said distressed me very much. Later Allah revealed the confirmation of my statement in his saying:-- '(When the hypocrites come to you.' (63.1) So the Prophet (ﷺ) called them that they might ask Allah to forgive them, but they turned their heads aside. (Concerning Allah's saying: 'Pieces of wood propped up,' Zaid said; They were the most handsome men.)

Sahih al-Bukhari Book 65, Hadith 423