What is the ruling on a man praying with his head uncovered?

The questioner : What is the ruling on a man praying with his head uncovered?

The Shaykh : What I believe is that it is disliked; because uncovering the head is also one of the customs and traditions that have infiltrated the lands of the Muslims due to the colonization of the disbelievers, so they spread their customs and traditions there, and many Muslims in those lands continued to be influenced by some of their customs after the disbelievers left, including uncovering the head. Although the lands differ in this custom, the custom of uncovering the head is much more prevalent in Syria, Jordan, and Egypt than in other Arab countries, such as Saudi Arabia, Yemen, Kuwait, and so on. Since this custom is not an Islamic custom, the Muslim is supposed to enter prayer in his best adornment; for Allah the Exalted said: . Although the adornment here, in terms of the reason for the revelation of the verse, means covering the private parts, the consideration is the generality of the wording, not the specificity of the reason. This is the first point.
And secondly: there is what came in the authentic Sunnah that supports this generality of the verse, which is his saying (peace and blessings be upon him): . In this hadith, the Muslim is commanded to enter prayer in the most complete state. At the time when the Messenger (peace and blessings be upon him) was asked: Does a man pray in one garment? He said (peace and blessings be upon him): . This hadith indicates the permissibility of praying in one garment, which is the izar that covers the private parts, but it also hints and indicates that one who finds two garments should not pray in one garment, limiting himself with this garment to covering the known private parts, which are the private parts in prayer and outside of prayer.