Is it permissible not to go to the mosque or to delay prayer when its time is due in a public place, for fear of imprisonment and harm from rulers?

Scholars have stated that fear of imprisonment permits absence from Friday prayer and congregational prayers. As for delaying a prayer beyond its time, it is permissible for someone who fears for their life or property to combine the Dhuhr and Asr prayers, as well as the Maghrib and Isha prayers. It is not permissible to delay more than that.