اہل سنت والجماعت
To some it is authentic as it is narrated from many channels, to some still it is still doubtful. apart from this debate, if we take it on its face value, we interpret it as a manner and not as sect to follow the prophet and his companions as the whole Deen has been transmitted through them. So no need to get yourself registered in a sect. Quran and Sunnah are the whole Deen transmitted to us through the companions and we need to follow the Quran and Sunnah to best of our knowledge.