In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
No scholar said that the covering of the hair for Muslim men is obligatory. What some scholars have said is that, it’s recommended for Muslim men to cover their head because in some cultures, covering the hair is a sign of dignity.
Sheikh Ammar Al-Shukry answers your question in the following video:
Almighty Allah knows best.
Source: FaithIQ Channel