It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that he said: "By the One besides whom there is no god, no woman has ever prayed a prayer better for her than a prayer she prays in her house, except (a prayer) in the Sacred Mosque or the Mosque of the Messenger (peace and blessings be upon him), except an old woman who (goes out) in her (old) shoes."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 9439