The scope of the verse on hijab includes all women.

Question:
In the noble verse: (O Prophet, say to your wives and your daughters), is the verse specific to the Messenger (peace and blessings be upon him)?

Answer:
Answer: No, it is not specific to the women of the Messenger (peace and blessings be upon him), but the women of the Messenger are the role model for the women of the Muslim community. The women of the Muslim community follow the example of the women of the Messenger (peace and blessings be upon him). Just as Allah commanded the women of the Messenger to observe hijab and cover their faces from men who are not their mahram (relatives one may not marry), so it is with the women of the Muslim community. It is obligatory for them to cover their faces with hijab, as in the saying of Allah the Exalted: (And when you ask them for anything, ask them from behind a screen. That is purer for your hearts and for their hearts). He cited the purity of hearts as the reason. The purity of hearts is required for every Muslim and every Muslim woman. Every Muslim woman covers her face from men who are not her mahram because she needs the purity of her heart. Likewise, the man veils himself from her, does not look at her, and does not look at her face because he needs the purity of his heart. Thus, the operative cause is general and not specific to the wives of the Prophet (peace and blessings be upon him). Likewise, the saying: (That is nearer to it that they may be known and not bothered). He cited as the reason for the hijab of the women of the Messenger that they are not bothered if they veil themselves. The open sinners do not bother them, nor do they follow them. So it is with the women of the Muslim community; they are in need of what prevents harm from them on the part of open sinners and those who follow their gazes toward women.