What is the meaning of "dead animal's sinew," and is it meant specifically, or does it apply by analogy to other parts of the dead animal? And how can the prohibition against benefiting from sinew be reconciled with the hadith "Its eating was merely forbidden"?

Scholars differed concerning the sinew of a carrion. Some held it to be impure because it is connected to life, while others considered it pure because it is a bone not connected.

The statements of the jurists regarding the impurity of carrion sinew varied. The Shafi'is held it to be impure, while Abu Hanifa considered it pure, a view preferred by Ibn Taymiyyah.

As for the prohibition of carrion, it pertains only to consumption, as evidenced by the Prophet's (peace be upon him) hadith regarding the hide of a dead sheep: "Only its eating has been forbidden."