Sayyiduna Usayd bin Zuhayr al-Ansari (may Allah be pleased with him), who was one of the Companions of the Prophet (peace and blessings be upon him), narrates from the Prophet (peace and blessings be upon him) that he said: "Praying in the Quba Mosque is like an Umrah."
(b) Abdullah bin Abi Shaybah (may Allah have mercy on him) narrates from Abu Usamah (may Allah have mercy on him): "Whoever comes to the Quba Mosque and prays in it, that prayer is like an Umrah."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 10295