An Invocation for Pain of the Thighs

Abu ‘Abd al-Rahman al-Katib narrated from Muhammad b. ‘Abd Allah al-Za’farani from Hammad b. ‘Isa from Amir a-Mu’minin, peace be upon him, who said: ‘When one of you suffers from pain of the thighs (al-fakhdhan), let him sit in a large vessel or basin of heated water and place his hand there [on his thighs] and recite:

Have not the unbelievers then beheld that the heavens and earth were a mass all sewn up, and then We unstitched them and of water fashioned every living thing? Will they not believe? (21:30)’