The student’s prayer in his dormitory room without the congregation

Question:
He says: May Allah preserve you, I am a student in the university housing. Sometimes I pray in the mosque, and sometimes in my private room. Is the prayer I perform in the room valid or not?

Answer:
If you have an excuse for not attending the congregation, your prayer is valid, and you are excused. You also receive the reward, for you have the reward of one who attended the congregation due to your good intention and the fact that you would have gone were it not for the excuse. There is no doubt that your prayer is valid and you have the reward of attending the congregation, because you did not miss it except for an excuse.
As for if you miss the congregational prayer without an excuse, your prayer is valid, but the sin of abandoning the congregation remains upon you. You are one who abandons an obligatory duty, and one who abandons an obligatory duty is punished, just as one who performs it is rewarded. So you are punished for abandoning the obligatory duty, which is attending the congregation. As for your prayer, it is valid, but its virtue is far less than the congregational prayer. The congregational prayer is preferred over the prayer of the one who prays alone by twenty-seven degrees, meaning twenty-seven prayers, twenty-seven prayers. This is lost to you, along with the sin that befalls you for abandoning the obligatory duty. Yes.