The Messenger of Allah ﷺ said, "Whoever purifies himself at home and then goes to the mosque of Quba and prays a prayer there, will have a reward like that of an Umrah."
قال رسول الله ﷺ: ومن تطهر في بيته، ثم أتى مسجد قباء، فصلى فيه صلاة، كان له كأجر عمرة.
Nasai (2/37), Ibn Majah (1412), and Hakim, who graded it sahih (3/12), all narrated it from the hadith of Muhammad bin Sulayman Kirmani, who said, "I heard Abu Umama bin Sahl bin Hunayf say, 'Sahl bin Hunayf said,'" and then he mentioned it. Its isnad is hasan because of Muhammad bin Sulayman Kirmani, the Madinan, from whom a group of people narrated, and Ibn Hibban confirmed his reliability. He was corroborated by Yusuf bin Tahman, the freedman of Muawiya, in Bukhari's Tarikh al-Kabir (8/379). Hakim said, "Its isnad is sahih."