Liaison office of Grand Ayatullah Sayyid Ali Al Sistani (L.M.H.L) in London, Europe, North and South America.

Islamic Laws - 4th Edition

3. Semen

Ruling 84. The semen of a man and every male animal whose meat is unlawful and whose blood gushes out is impure. The fluid that comes out of a woman following sexual arousal and causes her to be in a state of ritual impurity (janābah) – as per the details that will be mentioned in Ruling 345 – has the ruling of semen. Furthermore, based on obligatory precaution, the semen of an animal whose meat is lawful (ḥalāl) and whose blood gushes out must be avoided [i.e. it is ruled to be impure].