The Ruling on Stickers on Cars in Support of the Messenger (peace and blessings be upon him)

Question:
Honorable Shaykh, the questioner says: There are many stickers that some people put on their cars, containing phrases such as "My father and mother are sacrificed for you, O Messenger of Allah," and "Except for Muhammad (peace and blessings be upon him)," and "I would rather be sacrificed than you, O Messenger of Allah." Is this a prescribed act? And is it truly in support of the Messenger (peace and blessings be upon him)?

Answer:
I do not know of any basis for this. Loyalty and disavowal (al-wala' wa al-bara') are in the hearts. Loyalty and disavowal are in the hearts and in actions. As for appearances, such as writing on papers and placing them on cars or on walls, this is not sufficient. And the Salaf (the earliest generations) did not do this, as far as I know; they did not do this. So loyalty and disavowal are in the hearts and in actions in the manner prescribed by the Shari'ah, not in papers and stickers. Yes.