Al-Imam Shams al-Din ibn al-Qayyim was asked once: Is it possible to recognize the fabricated hadith through a regulation without looking into its sanad (chain of transmission)? He replied.
This is truly a very important question. This (fabricated) hadith can only be recognized by that who is thoroughly acquainted with knowing the correct sunan, in a way they be intermingled with his flesh and blood, and he having an instinctive knowledge and good talent in recognizing the sunan and old methods. Besides knowing the sirah (biography) of the Messenger of Allah (upon whom be God’s peace and benediction), with his guiding directions including to which he bids and from which he forbids, of what he apprises and to what he invites, what he loves and what he detests, and what he legislates for the Ummah, as if he enjoyed his (S) company for a long time. Such a man can verily be acquainted with his conditions, guidance, speech, acts and sayings, and what is permissible to tell and what is impermissible, that which can never be realized by others. This is verily the state of every followed (matbu’) with his follower, as his favorite, who is serious in following up his words and deeds, out of knowledge of them, and distinguishing between what is proper to ascribe to him and what is improper to ascribe, ... such one differs from that who is deprived of such traits ...etc.
Ibn Daqiq al-‘Id is reported to have said: “Most often charging with composition (of hadith) happens to be due to things related to what is narrated and words of the hadith. The conclusion of this is due to the fact that, because of the extensive use and transmission of the Prophet’s words and expressions, these people came to possess a psychological fashion and strong intuition through which they could recognize which of the Prophet’s words are more proper to be used and which are not”.
Adapted from: "Lights on the Muhammadan Sunnah" by: "Mahmud Ali Riyyah"