Shaikh Saaleh Al-Fawzaan [may Allaah preserve him] said:
It is not permissible to exalt and praise the innovators even if they have some truth with them. That is because raising and praising them will spread their bidah and place them amongst the sincere ones-those who are taken as examples amongst distinguished men of this Ummah. The Salaf warned against having trust for the innovators, (warned against) praising them and their gatherings. In this regard, Asad Ibn Musa (rahimahullaah) wrote: ”Beware of being a brother of the innovator (by association) or a companion of his, or one whom you sit with; for indeed it has been narrated that ‘Whoever sits with a person of innovation has left the protection of Allaah and is entrusted to himself’.
The innovators must be warned against and kept away from even if they have some truth with them. Indeed, the most astray are not devoid of some truth, but as long as they have with them innovation, opposition and sinful views, it is not permissible to praise and exalt them. It is impermissible to not have an objection against their innovation because this spreads bidah, belittles the Sunnah and by way of this the innovator will emerge and become a guide for the Ummah.
As for giving consideration (to the fact) that the innovation has some truth, this does not justify praising him. This is -to a far greater extent- against what is of overriding benefit and it is known in relation to a principle in the religion that averting harm takes precedence over seeking that which is of benefit. And with regards to having hatred for the innovator, the harm that is averted from the Ummah is weightier than the benefit possessed by the innovator. And had we adhered to this concept (i.e. praising the innovator because he has some truth with him), then no one would have been judged to be misguided and declared an innovator. That is because there is not an innovator except that he has some truth and adherence to the Sunnah. The innovator (may) neither be a disbeliever nor be in opposition to all the Islamic legislation; rather he is either an innovator in some or most of the affairs. However, if the innovation is particularly related to affairs of Creed and Methodology, then the affair is dangerous indeed because it will become an example (to be followed); innovation will spread and the innovators will become active in spreading their innovation.
So, this person who praises the innovators and makes their affair obscure to the people -due to some truth they (i.e. innovators) have – is one of two (people): He is either one ignorant of the methodology of the pious predecessors and their stance against the innovators, and it is neither permissible for this ignorant one to speak nor is it permissible for the Muslims to listen to him; or he is one who has an objection to the truth because he knows the danger of innovation and the innovators, but he wishes to spread innovations. Nevertheless, this is a dangerous affair and it is not permissible to be lackadaisical with regards to innovation and its people, whatever that may be.
[Source: At-Tabdee Wat-Tafseeq Wat Takfeer. Page: 72-76. Abridged and slightly paraphrased]
Imaam Fudayl Ibn Iyaad [rahimahullaah] said:
‘Do not sit with a person of innovation, for I fear that curses will descend upon you’
Shaikh Saaleh Al-Fawzaan [may Allaah preserve him] commented on the above statement [of Imaam Barbahaaree]: saying: [That is] because punishment, anger and deviation descend upon a person of innovation, so it is feared that you will be afflicted with some of what afflicts him, and for that reason Allaah said:
وَإِذَا رَأَيۡتَ ٱلَّذِينَ يَخُوضُونَ فِىٓ ءَايَـٰتِنَا فَأَعۡرِضۡ عَنۡہُمۡ حَتَّىٰ يَخُوضُواْ فِى حَدِيثٍ غَيۡرِهِۦۚ وَإِمَّا يُنسِيَنَّكَ ٱلشَّيۡطَـٰنُ فَلَا تَقۡعُدۡ بَعۡدَ ٱلذِّڪۡرَىٰ مَعَ ٱلۡقَوۡمِ ٱلظَّـٰلِمِينَ
”And when you (Muhammad) see those who engage in a false conversation about Our Verses (of the Qurýaan) by mocking at them, stay away from them till they turn to another topic. And if shaitaan causes you to forget, then after the remembrance sit not you in the company of those people who are the Zaalimoon (polytheists and wrongdoers)’[6:68]
And Allaah [The Most High] said to the believers:
وَقَدۡ نَزَّلَ عَلَيۡڪُمۡ فِى ٱلۡكِتَـٰبِ أَنۡ إِذَا سَمِعۡتُمۡ ءَايَـٰتِ ٱللَّهِ يُكۡفَرُ بِہَا وَيُسۡتَہۡزَأُ بِہَا فَلَا تَقۡعُدُواْ مَعَهُمۡ حَتَّىٰ يَخُوضُواْ فِى حَدِيثٍ غَيۡرِهِۦۤۚ إِنَّكُمۡ إِذً۬ا مِّثۡلُهُمۡۗ
إِنَّ ٱللَّهَ جَامِعُ ٱلۡمُنَـٰفِقِينَ وَٱلۡكَـٰفِرِينَ فِى جَهَنَّمَ جَمِيعًا
‘And it has already been revealed to you in the Book (this Qur’aan) that when you hear the Verses of Allaah being denied and mocked at, then sit not with them, until they engage in a talk other than that; (but if you stayed with them) certainly in that case you would be like them. Surely, Allaah will collect the hypocrites and disbelievers all together in Hell.’ [4:140]
In this is a warning against sitting with the people of misguidance and desires- [a warning] against sitting, accompanying and listening to their speech or reading their books. So it is upon you to be distant from these affairs. And Allaah’s Aid is Sought! At present the one who acts upon this [i.e. the one who keeps away from the people of misguidance and desires] is said to be a secluded person and a boycotter, and that he is one who harbours doubt against the people.
[It’haaful Qaaree Bitta’liqaat Alaa Sharh As-Sunnah Lil Imaam Barbahaaree.page: 318-319 Vol: 2). slightly paraphrased]
We Will Not Leave Anyone Who Speaks Against The Sunnah- By Shaikh Muqbil Bin Haadi
Shaikh Abdullaah Al-Bukhaari [may Alaah preserve him] said:
And from that which the people of knowledge have affirmed is that this religion is established on two affairs: Clarification of the truth and Refutation against falsehood and its people. The affirmation of this [affair] becomes manifest to the one who contemplates on the statement of Tawheed [لا إله إلا الله] with clarification and by way of explanation. The saying of the slave (i.e. the Muslim) لا إله is a refutation against falsehood and its people-those who deify others besides Allaah. And the statement إلا الله is an affirmation of truth and a clarification of it. And it (means) that Allaah alone has the right to be worshipped and He has no partner.
Likewise, the statement محمد رسول الله is an affirmation of the Messengership of the Prophet [sallal-laahu-alayhi-wasallam] and a refutation against the one who gives him a status above that and thus deifies him; or lowers the rank of his Prophethood and Messengership.
[Source:المقالات الشرعيّة page 14-15]
Make More Effort to Learn The Truth, Especially When Bidah Becomes More Widespread
Shaikh Saaleh Al-Fawzaan [may Allaah preserve him] says:
“The people of knowledge [i.e. the scholars] are of the view that it is obligated on the Muslims in every era that if they are certain about the presence of this filthy doctrine [i.e. the doctrine of the khawaarij], they should remedy it through calling to Allaah [i.e. the correct way] and enlighten the people about that. If they [i.e. khawaarij] do not obey [and come out fighting], then they are fought [by the Muslim ruler] in order to repel their harm.”
[لمحة عن الفرق الضالة page 42]