In the suburb where I live there is a Masjid (mosque) with a Zawiyah (corner, prayer room) reserved to a Tariqah (Sufi order). Is it permissible to pray in it?
Do not pray with these Sufis in their Zawiyah, and beware of keeping company with them and mixing with them, lest you should be influenced by their acts. You are advised to offer Salah (Prayer) in a Masjid where the congregation is keen to follow the Sunnah and adheres to it.May Allah grant us success. May peace and blessings of Allah be upon our Prophet Muhammad, his family and Companions!