It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Soon there will be rulers who will kill the prayer and keep it suppressed until near sunset; and it will be the prayer of one who is worse than a donkey, and the prayer of one who finds no other way out. So whoever of you reaches that time, let him offer the prayer at its proper time, and let him count the prayer offered with them as voluntary."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 10169