Does preventing students from performing Salah on the part of formal schools make it permissible for them to combine Salahs?

Q: The Christian regular private schools in Ethiopia have a policy of preventing Muslim children from performing Salah (Prayer) inside the schools, which prompted some Muslim students to leave their school and some others to delay the Salah, given that there are regular government schools which allow Muslim students to perform Salah. The problem lies in the lack of discipline in the government schools and in the teachers themselves who are unqualified and further do not observe their regular working hours, which has an extremely negative influence on the students' levels. In contrast, the Christian private schools are totally different from the government schools in terms of (Part No. 7; Page No. 41) order and teachers' discipline and competence. Is it permissible for Muslim students to combine the Maghrib (Sunset) and `Isha' (Night) Prayers at the time of the later one, so as to continue their classes in the Christian regular private schools, or do they have to leave these schools and join the government schools despite their defects?

A: Muslims are duty bound to perform Salah in their due times, and leave schools that do not allow them to do so, in order to preserve their religion. This is actually based on the fact that Salah is the essential pillar of Islam, and anything that leads to neglecting it is not sanctioned.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.