(Sahl)bin Hunaif said:
"The Messenger of Allah (ﷺ) said: 'Whoeverpurifies himself in his house, then comes to the Quba' Mosque andoffers one prayer therein, will have a reward like that for 'Umrah." (FR)
English reference (FR): Vol. 1, Book 5, Hadith 1412 (FR)
Arabic reference (FR): Book 5, Hadith 1477 (FR)