“If blood matam and hitting oneself with chains, which are practiced in Muharram, cause serious harm, or harm or ridicule the religion and sect then it is impermissible.”-Ayatollah Sayed Abu al-Qasim al-Khoei https://twitter.com/323sicario/status/1261015783880175617

“Reviving Hussaini traditions is Mustahabb but one is not allowed to harm the body or the noble reputation of the faith.” Ayatollah Sayed al Sistani

"Tatbir is a wrongful act...Tatbir [Qame Zani] is also a fabricated tradition...Do not practice it, I do not approve. If someone does anything to display their desire to practice Tatbir, I will be deeply disappointed in them." Ayatollah Sayed al Khamenei

"Muslims should avoid actions that display weakness in the Shia religion and damage the body" - Ayatollah Sheikh Naser Makarem Shirazi