The Maraji' have generally ruled that wearing things like leather belts in salat is not allowed if the leather is not slaughtered in an Islamic way. See Islamic Laws of Ayatullah Seestani's Tawdhihu'l Masa'il p. 160.
I have a question regarding wearing a leather belt during prayer, I was wondering what is the Fatwa from different Maraje'?
Question originally asked on
Aalim Network Archives https://www.al-islam.org/organizations/AalimNetwork/msg00189.html
Professor Liyakat Takim is the Sharjah Chair in Global Islam at McMaster University in Canada.