Not knowing whether those who slaughter mention Allah's Name upon slaughtering or not

Q 2: The process of slaughtering animals in Egypt runs mostly as follows: Butchers send animals to slaughterhouses where they are slaughtered then sent back to butchers to be sold. We are not sure whether the name of Allah is mentioned on the slaughtered animals. Likewise, we do not know whether butchers who do the slaughtering perform Salah (Prayer). We do not know whether they swear at Din (religion). Is it thus Wajib (obligatory) for us to try to find out about all the foregoing? It may be worth mentioning that it is a widespread practice that a person who performs Salah swears at Din once they are outraged.Please provide us with a simple answer for all the points mentioned above. Verily, Allah Alone is the One Who grants guidance. A: The original ruling regarding animals which are slaughtered by Muslims is that it is permissible to eat from their meat. Such meat will be considered Haram (prohibited) only if an authentic proof indicates so. Such a proof may be Riddah (apostasy) of the butchers who slaughter such animals or that they deliberately abandon mentioning the name of Allah on the slaughtered animals. (Part No. 22; Page No. 369

The original ruling regarding animals which are slaughtered by Muslims is that it is permissible to eat from their meat. Such meat will be considered Haram (prohibited) only if an authentic proof indicates so. Such a proof may be Riddah (apostasy) of the butchers who slaughter such animals or that they deliberately abandon mentioning the name of Allah on the slaughtered animals. (Part No. 22; Page No. 369) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.