What is an example of a hadith that is sahih in chain but not sahih in content?

There are two main aspects of a hadith that make reliable (sahih): its narrator chain (sanad) and its content (matn). See Hadith studies at Wikipedia. **Question**: What is an example of a hadith that is sahih in chain but not sahih in content? I'm not sure if this is possible. Such a hadith might fall under the classification of *shadh* or *mu’allal*: > ... The statement that “**the hadith should not be shadh” (irregular)**“ excludes from the sahih hadith the shadh report where a trustworthy narrator goes against the narration of narrators who are more reliable than him. Their statement: “**It should not be mu’allal (defective)**“ excludes from the sahih hadith the mu’allal report which has a defect. The ‘illah (defect) consists of a weakness in the hadith, causing its rejection, a matter which appears to the critics when collecting and examining the various transmission routes of the hadith. > khilafah.com The closest I've found is the following (and this may actually be an example, but I'm not clear on this): > If there was to have a Prophet after me, it would have been 'Umar bin Al-Khattab. > Jami` at-Tirmidhi [grade: hasan] This was described as "odd (munkar)" on Islam Q&A ; they present the hadith as: > Imam Ahmad (17405), at-Tirmidhi (3686) and al-Haakim (4495) narrated via Mishrah ibn Haa ‘aan, from ‘Uqbah ibn ‘Aamir (may Allah be pleased with him) who said: I heard the Messenger of Allah (blessings and peace of Allah be upon him) say: “If there were to be a Prophet after me, it would be ‘Umar ibn al-Khattaab.” The scholars differed concerning this hadith. It was classed as saheeh by al-Haakim, and adh-Dhahabi agreed with him. It was classed as hasan by at-Tirmidhi and by al-Albaani in Saheeh at-Tirmidhi.