In Al-Fusūl fi al-Usūl (Arabic: الفصول في الأصول) by Abu Bakr al-Rāzi al-Jassās, vol. 2, pp. 68, he said that an ahād hadith, when accepted and practiced by concensusconsensus (ijmā', Arabic: اجماع) of the companions, elevates that hadith is elevated in terms of jurisprudence to that of a mutawātir hadith.
Here, we can look at some examples to see how Hanafi shcolarsscholars applied their concept of well-known sunnah.
TheOne well-established judicial rule ofis that the burden of the proof lies on the one making the claimmclaim, and whoever denies has to do so under oath, according. According to Al-Jassās, this rule relies on an ahād hadith that is well accepted, adopted, and practiced by the Islamic nation, which elevates its stance as a hadith:
Another example is related to the permissibility of a Muslim's blood (see Sunan an-Nasa'i 4057) in three cases only (married committing adultery, intentionaklintentional murder, and apostasy), versus another hadith of killing someone who is caught four times drinking alcohol (see Sunan Abi Dawud 3680) as the Prophet ﷺ did not come across a situation to put into practice the latter.