Recomendation of Tatbeer
Question :

Participants in some mourning ceremonies shed blood. Is it recommended to do so?

Answer :

Religious rituals that Shias perform to mourn the tragedies of the Imams of the Ahlulbait (peace be upon them) and to present the oppressions that they suffered are recommended. However, it is obligatory to avoid what causes harm to the soul or the body. If it does not result in harm, it remains being recommended. One should avoid performing them in a place where the reputation of the Shias is damaged.