Five human urges are from the fiṭrah (natural human instinct or disposition)

Messenger of Allah ﷺ said, "Five practices are characteristics of the fiṭrah: (1) circumcision, (2) shaving the pubic region, (3) plucking the arm pits, (4) clipping the nails, and (5) cutting the mustaches."  

عَنْ أَبِي هُرَيْرَةَ رِوَايَةً الْفِطْرَةُ: «خَمْسٌ» أَوْ «خَمْسٌ مِنَ الْفِطْرَةِ: (١) الْخِتَانُ (٢) وَالاِسْتِحْدَادُ (٣) وَنَتْفُ الإِبْطِ (٤) وَتَقْلِيمُ الأَظْفَارِ (٥) وَقَصُّ الشَّارِبِ۔»  

Ibn ʿUmar said, The Prophet ﷺ said, 'Do the opposite of what the pagans do. Keep the beards and cut the moustaches short.' Whenever Ibn ʿUmar performed the Hajj or ʿUmra, he used to hold his beard with his hand and cut whatever remained outside his hold.  

عَنِ النَّبِيِّ ﷺ قَالَ خَالِفُوا الْمُشْرِكِينَ وَفِّرُوا اللِّحَى وَأَحْفُوا الشَّوَارِبَ وَكَانَ ابْنُ عُمَرَ إِذَا حَجَّ أَوِ اعْتَمَرَ قَبَضَ عَلَى لِحْيَتِهِ فَمَا فَضَلَ أَخَذَهُ  

Messenger of Allah ﷺ said, "Cut the moustaches short and leave the beard (as it is).  

قَالَ رَسُولُ اللَّهِ ﷺ انْهَكُوا الشَّوَارِبَ وَأَعْفُوا اللِّحَى