Why is it impermissible to name children "Abd al-Mutakabbir," "Abd al-Wali," or "Abd al-Matin," even though "al-Mutakabbir," "al-Wali," and "al-Matin" are among the Beautiful Names of Allah?

There is no objection to being named 'Abd al-Mutakabbir' (Servant of the Arrogant), 'Abd al-Wali' (Servant of the Guardian), or 'Abd al-Matin' (Servant of the Firm), based on the Prophet’s (peace be upon him) saying: "Indeed, the most beloved of your names to Allah are 'Abdullah' (Servant of Allah) and 'Abdur-Rahman' (Servant of the Most Merciful)." However, it is not obligatory to be named with them, and not using them is not considered a deficiency in faith.