In The Name of Allaah, The Most Merciful, The Bestower of Mercy.
Shaikh Rabee [hafidhahullaah] said: The final affair of Ahlul Kalaam [the proponents of theological rhetoric] are a state of doubt and confusion, and the final affair of Ahlut Tasawwuf [the people of the Sofee paths] are a state of wild irrational behaviour and false claims. Shaikhul Islaam Ibn Taymiyyah [rahimahullaah] said, “And because of this, the innovators of Ahlul Kalaam [proponents of theological rhetoric] have something of resemblance to the Yahood and the innovators in acts of worship have something of resemblance to the Nasaaraa. The final affair of ahlul kalam are a state of doubt and confusion and the final affair of the innovators in acts of worship are a state of wild irrational behaviour and false claims. That is because these ones [i.e. ahlul kalaam] deny the truth and thus it leads them to doubt and those ones [i.e. innovators in acts of worship] believe in falsehood and it leads them to a state of wild irrational behaviour. These ones [i.e. ahlul kalam] are like the darkness in a vast deep sea, overwhelmed with a great wave topped by a great wave, topped by dark clouds, darkness, one above another; and those ones [i.e. innovators in acts of worship] are like a mirage in a desert, the thirsty one thinks it to be water, until he comes up to it and finds it to be nothing”. [Al-Mukhtaaraat Al-Bahiyyah Min Kutub Shaikhil Islaam Ibn Taymiyyah. Page 281. Slightly paraphrased]
The Consequences of Conjecture And Desires
Allaah said: [إِن يَتَّبِعُونَ إِلَّا ٱلظَّنَّ وَمَا تَهۡوَى ٱلۡأَنفُسُۖ – They follow but a guess and that which they themselves desire].
Shaikh Abdur Razzaaq Al-Badr [hafidhahullaah] said: The one deprived of sound Eemaan and the sound creed sent down as revelation by Allaah- The Lord of the Aalameen, then his affair is one of two: Corruption in Knowledge or Corruption in his Intent– corruption in knowledge occurs as a result of following conjecture and corruption in one’s intent occurs as a result of following desires, or the person may combine both of them.
Another benefit derived from this is that the rectification or well-being of a person cannot be attained except by way of two affairs: Upright Knowledge and Upright Intent. This is why Imaam Ibnul Qayyim (rahimahullaah) said in Miftaah Daarus Sa’aadah that a person is in need of two things: “Sound Knowledge by way of which he is rightly guided and lofty aspiration by way of which he is urged towards that”. That is because it maybe that a person has beneficial knowledge but not sound intent and aspiration, therefore one cannot be upright except by way of upright knowledge and intent. Sound knowledge is corrupted through following conjecture and sound intent is corrupted through following the desires of one’s soul. [An Excerpt from Sharh Kitaab At-Tawheed. Lesson 4]
Also read: https://salaficentre.com/2020/06/theres-nothing-more-harmful-to-muslims-creed-than-ilmul-kalaam-this-statement-of-shaikh-uthaymeen-becomes-a-true-reality-after-one-reads-refutations-by-ustaadh-ab/