What is the ruling on praying in a place of work (hotel) where there is a cassette of pornography placed on a high shelf behind a wall, given the difficulty of finding another place or leaving it to monitor guests?

Prayer in the aforementioned place is valid - though disliked - as long as the spot where one prays is pure, due to the general statement of the Prophet, peace and blessings be upon him: "The earth has been made for me a mosque and a means of purification." It is disliked due to what it contains of sins. Scholars have agreed on the dislike of praying in the dwelling of Satan, places of grave sins, and churches, but prayer therein is valid if no impurity is touched. It is advised to seek another job far from places of temptations and doubts.