Narrated Zaid bin Arqam:

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."

Narrated Zaid bin Arqam:

When `Abdullah bin Ubai said, "Do not spend on those who are with Allah's Messenger," 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.