4. It is Sunnah to trim the moustache as finely as possible. There are severe warnings in the Ahadith for keeping very long moustaches.  (Behishti Zewar pg.115 - Part 11)

5. The hair below the navel, armpits, the moustaches, as well as the nails should be cut and kept clean. It is sinful to allow 40 days to pass without doing so. (Bukhari pg.875 vol.2)