Q: What is the ruling of closing one’s eyes during prayer?
A: As explicitly reported, it is disliked to close one‘s eyes during prayer without a need as it is considered a Jewish ritual and never assumed act of sleep. A need would be like closing one’s eyes to avoid seeing something that should not be seem during prayer like one’s spouse in the nude or, even worse and impermissible, an unclothed stranger. Source: Kashshaf al-Qina’a
This answer was collected from HanbaliDisciples.com. The questions have been answered by Imam John Starling.