The Prophet ﷺ as saying: The inborn characteristics of man are five. Another version says: Five things are of the inborn characteristics of man: circumcision, shaving the pubes, plucking out hair under the armpit, paring the nails and clipping the moustaches.  

النَّبِيَّ ﷺ الْفِطْرَةُ خَمْسٌ أَوْ خَمْسٌ مِنَ الْفِطْرَةِ الْخِتَانُ وَالاِسْتِحْدَادُ وَنَتْفُ الإِبْطِ وَتَقْلِيمُ الأَظْفَارِ وَقَصُّ الشَّارِبِ  

The Messenger of Allah ﷺ commanded to clip the moustaches and grow the beard long.  

أَنَّ رَسُولَ اللَّهِ ﷺ أَمَرَ بِإِحْفَاءِ الشَّوَارِبِ وَإِعْفَاءِ اللِّحَى  

The Messenger of Allah ﷺ fixed forty days to shave the pubes, paring the nails, clipping the moustaches, and plucking the hair under the armpit. Abu Dawud said: Ja'far b. Sulaiman transmitted it from Abu 'Imran on the authority of Anas. In this version he did not mention the Prophet ﷺ. He said: Forty days were fixed for us. This is a more correct version.  

وَقَّتَ لَنَا رَسُولُ اللَّهِ ﷺ حَلْقَ الْعَانَةِ وَتَقْلِيمَ الأَظْفَارِ وَقَصَّ الشَّارِبِ وَنَتْفَ الإِبْطِ أَرْبَعِينَ يَوْمًا مَرَّةً  

We used to grow beard long except during the Hajj or 'Umrah. Abu Dawud said: Istihdad means to shave the pubes.  

كُنَّا نُعْفِي السِّبَالَ إِلاَّ فِي حَجٍّ أَوْ عُمْرَةٍ