https://khc.qcc.cuny.edu/wp-content/uploads/2022/05/Land-Of-Shahs_UA.pdf: "the belief in the impurity of Jews was officially reiterated by the Ayatollah Ruhollah Khomeini when, in regard to the status of Ahl-e ketab (People of the Book—i.e. Jews and Christians) and the issue of purity, he declared that 'non- Muslims of any religion or creed are najes'"
Sistani's official website: "The Ahlul Kitab (that is, the Jews, the Christians and the Zoroastrians) are ritually pure (tahir) as long as you do not know that they have become ritually impure (najis) by coming into contact with an impure object. You can follow this ruling when dealing with them."
