Leaving the congregational prayer on the pretext of sleep and standing in night prayer

Question:
He says: Honorable Shaykh, may Allah grant you success. A student of knowledge who makes efforts in da'wah (calling others to Islam) and stands in night prayer, but he does not pray some of the obligatory prayers in congregation because he sleeps. Sometimes he is woken in one room and moves to another, and does not pray with the congregation. He tells us that he is excused, because he does not want to say in his prayer what does not please Allah. What is the ruling on such a matter?

Answer:
This is perhaps because he is ill and sleep overcomes him; his sleep is heavy and overcomes him, so he is excused. But if he prefers sleep over the congregational prayer, this is not permissible; it is forbidden for him. If he prefers sleep over the congregational prayer, it is forbidden for him. But if sleep overcomes him, or if he has a type of illness such that he cannot pray except after taking his share of sleep, then he is excused. Yes.