Salam aga I saw this masala with ehtiyate wajib (obligatory precaution)And i would like to know what is the ruling of other marja in this like ayatollah waheed khurasaniIn ayatollah sistani the masala i am talking is belowUnder-Kurr water which is poured over a najis object to remove the essential najasat will be najis, as it flows after the contact. Similarly, the under-Kurr water which is poured over a najis thing to wash it after the essential najasat has been removed, will be najis, as an Obligatory precaution.

Walaikumussalam brother
Aayatullah Waheed Khurasani has the same ruling as Aagha e Sistani.
Wassalam