What is the ruling on working as an accountant in companies where the purification ratio of their shares is "zero," and which Sheikh Al-Osaimy listed among the permissible stocks for the year 1429, taking into consideration the notes mentioned below the list, specifically point number seven?

If the website has conducted sufficient investigation into companies and reported that the purification ratio in some of them is zero, this means that their work is permissible, and there is no harm then in working for them as an accountant or in any other position.

The preponderant opinion is the impermissibility of participating in any company that engages in a prohibited activity, even if its primary work is permissible.