(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." (RU)
English reference (RU): Vol. 1, Book 5, Hadith 1412 (RU)
Arabic reference (RU): Book 5, Hadith 1477 (RU)