Nafi' reports from Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Obedience is binding on every Muslim, in what he likes and what he dislikes, as long as he is not ordered to commit a sin; when he is ordered to commit a sin, obedience is not obligatory."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5334
Abdullah bin Mas'ud (may Allah be pleased with him) reports from the Messenger of Allah (peace and blessings be upon him): "Soon a people will take charge of your affairs who will extinguish the Sunnah, introduce innovations and delay the prayers from their times." Ibn Mas'ud (may Allah be pleased with him) says: I said: "O Messenger of Allah! If I meet them, what should I do?" He (peace and blessings be upon him) said: "O son of Umm Abd! There is no obligation to obey one who disobeys Allah." He (peace and blessings be upon him) said this three times.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5336
Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) says that the Messenger of Allah (peace and blessings be upon him) said: "Perhaps you will meet people who will pray the prayers late. If you meet such people, pray in your homes on time, at the time you know. Then pray with them and make it voluntary."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5337
Abdullah bin al-Samit reports from Sayyiduna Abu Dharr (may Allah be pleased with him), attributing it to the Prophet, that he (peace and blessings be upon him) struck my thigh and asked: "How will you be when you remain among a people who delay the prayer from its time?" Then he said: "Pray the prayer at its time, then go out; and if you are in the mosque and the iqamah is called, pray with them."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5338