Musannaf Ibn Abi Shaybah 28929 — The spine: how much is due for it?

Mujahid said: If the spine is broken and then sets, and his semen is cut off (that is, some harm occurs such that his line cannot continue), his blood money (diyah) is due in full. If the semen is not cut off but there is some crookedness in his back, it will be looked into (that is, the blood money will be according to the extent of the harm).