Shama-il Tirmidhi Chapter 9, Hadith Number 2 (70).

Sayyidina Mughirah bin Shu’bah radiallahu anhu relates: “Dihyah Kalbi sent to Rasulullah Sayyidina Rasulullah sallallahu alaihe wasallam as a gift to khuffs. In another narration it is stated that with the khuffs a jubbah (a long coat) was also sent. Rasulullah Sayyidina Rasulullah sallallahu alaihe wasallam did not inquire if the skin was from slaughtered animals or not”.

Commentary.
The last sentence of this hadith strengthens madh-hab of the Hanafis that it is permissible to use a tanned skin of an animal whether it is slaughtered according to shari’ah or not. Some of the ‘ulama differ on this question. It has been discussed in the books of fiqh (jurisprudence).