Sunan an-Nasa'i 4250
سنن النسائي#4250SahihIt was narrated that'Abdullah bin 'Ukaim said:"The Messenger of Allah wrote to us: 'Do not make use of the skins and sinew of dead animals
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiHasan
In-book reference: 41:29