What is the ruling on writing supplications and the names of Allah on car windows and the like?

Question : May Allah reward you. He says: We see many people writing on the outside of their cars some supplications, or some of the beautiful names of Allah. What is the ruling on that?

Answer : In any case, we say that it is not recommended to write them, because I do not know of them being reported from the Salaf. However, I cannot say that it is forbidden if there is something beneficial in it, such as if one writes "Remember Allah," or writes "Allahu Akbar," or writes "O Allah, protect me," or writes "O Allah, save me from the evil of accidents," or something similar. I cannot say that this is prohibited, but leaving it off is closer to safety.