What is the detailed ruling on the validity of a mursal hadith?

The questioner : We need a detailed explanation of the ruling on the validity of a mursal hadith?

The Shaykh : The definition of a mursal hadith is known among the scholars of hadith as: "It is a statement by a Tabi'i (successor) saying: 'The Messenger of Allah (peace and blessings be upon him) said...'" The scholars differed in the past regarding using a mursal hadith as evidence. The majority of hadith scholars hold that a mursal hadith is not used as evidence due to the unknown intermediary between...