Purity: Ruling on Blood Remaining in Animals Whose Meat Is Unlawful to Eat

Practical Laws of Islam as per the teachings of Ayatullah Sistani

Ruling 225

Based on obligatory precaution, the previous ruling only applies to animals whose meat is lawful to eat; it does not apply to animals whose meat is unlawful to eat.

-Ayatullah Sistani, Practical Laws of Islam, Purification (Taharah)