"The Messenger of Allah ﷺ used to come to Quba' riding and walking." [1] Quba' is about three miles to the south of the Prophet's Masjid. This area is named after in that district.  

كَانَ رَسُولُ اللَّهِ ﷺ يَأْتِي قُبَاءً رَاكِبًا وَمَاشِيًا  

"My father said: 'The Messenger of Allah ﷺ said: 'Whoever goes out to his Masjid - the Masjid of Quba' and prays therein, that will be equivalent to 'Umrah.'"  

قَالَ رَسُولُ اللَّهِ ﷺ مَنْ خَرَجَ حَتَّى يَأْتِيَ هَذَا الْمَسْجِدَ مَسْجِدَ قُبَاءٍ فَصَلَّى فِيهِ كَانَ لَهُ عِدْلَ عُمْرَةٍ