Sunnah is the way or the lifestyle of the Prophet RasulAllah SAW. His way is the best way. The aqeedah, the theology, is the same with the all Nabiya, but in terms of practices it’s a little bit different, it’s depend of the time.
Prophet Muhammad SAW is the final messenger and the way of his life it is suppose to be the way of the people to look up to and to find the example the best guidance.
And for some of people, following of Sunnah Rosulullah SAW is not applicable in this 21st century.
Sunnah of Rasulullah is Akhlak and the manners. Akhlak is the Qur’an itself and it deliver the messages.
