Shaykh Al-Fawzaan said, “There is no harm in labelling oneself with Salafiyyah when it is in truth.
However, if it is merely a claim then it is not permissible to label oneself with Salafiyyah, whilst one is upon a manhaj other than that of the Salaf.
The (misguided) Asharis for example, say “We are Ahlu Sunnah Wal Jamaah” and this is not correct. This is because what they are upon is not the manhaj of Ahlu Sunnah Wal Jamaah. It is likewise for the (aatray) Mutazilah who call themselves “Muwahhideen” (Monotheists – people of tawheed).
All of them claim to have love for Laylaa, Yet Laylaa does not affirm this for any of them.
Hence, the one who claims that he is upon the madhab of Ahlu Sunnah Wal Jamaah [actually] follows the path of Ahlu Sunnah Wal Jamaah and abandons the opposers.
However if he [is one who] wants to unite the lizard and the fish – as they say – meaning, to unite a creature from the land with a creature from the sea, then this is not possible. Or to unite water and fire in a vessel. In light of this, Ahlu Sunnah Wal Jamaah do not reconcile with the path of those who oppose them such as the Khawarij, the Mutazilah, the Hizbiyyeen amongst those who call themselves, the Contemporary Muslims.
Such is the one who wants to unite between the errors and misguidance of the contemporaries with the manhaj of the Salaf.
So “the latter part of this Ummah will not be corrected except by that which corrected its earliest part.” The essence of the matter is that it is necessary to weigh matters and to separate them.”
 Shaykh Al-Islam Ibn Taymiyah said, “There is no criticism for the one who proclaims the way (madhdhab) of the Salaf, who attaches himself to it and refers to it. Rather, it is obligatory to accept that from him by unanimous agreement (Ittifaaq) because the way (madhdhab) of the Salaf is nothing but the Truth (Haqq)” [Majmoo al-Fataawaa 4:149]
Ref: Al-Ajwibah al-Mufidah
Posted by Abdul Kareem Ibn Ozzie