Abu Sa'eed Al-Khudri narrated: "A man from Banu Khudrah and a man from Banu Amr bin Awf were disputing about the Masjid that was founded upon Taqwa. The man from Banu Khudrah said: “It is the Masjid of Allah's Messenger.' The other one said that it was Masjid Qub. So they went to ask Allah's Messenger about that. He said: “It is this - meaning his Masjid - 'and in that one (Masjid Quba) there is much good””"
SahihSahihHasan SahihBook 2 · Hadith 175