The Messenger of Allah ﷺ commanded us to build mosques in different localities (i.e. in the locality of each tribe separately) and that they should be kept clean and be perfumed.  

أَمَرَ رَسُولُ اللَّهِ ﷺ بِبِنَاءِ الْمَسَاجِدِ فِي الدُّورِ وَأَنْ تُنَظَّفَ وَتُطَيَّبَ  

After (praising Allah and blessing the Prophet) that: The Messenger of Allah ﷺ used to command us to build mosques in our localities and keep them well and clean.  

أَنَّهُ كَتَبَ إِلَى ابْنِهِ أَمَّا بَعْدُ فَإِنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَأْمُرُنَا بِالْمَسَاجِدِ أَنْ نَصْنَعَهَا فِي دِيَارِنَا وَنُصْلِحَ صَنْعَتَهَا وَنُطَهِّرَهَا