For if you exaggerate, expectations of him
Will soar to the furthest extreme.
He is diminished by the very praise that exalted him,
For what was imagined surpasses (1) what is seen.
There is another consideration as well (2): the person bearing such a name may suppose and believe that he truly possesses the quality it describes. He then falls into declaring himself righteous, magnifying himself, and exalting himself above others. This is why the Prophet, peace and blessings be upon him, forbade giving the name Barrah (righteous), saying:
“Do not declare yourselves righteous; Allah knows best who among you is righteous.” (3)
Accordingly, it is disliked to give such names as al-Taqī (the pious), al-Muttaqī (the God-fearing), al-Mutī‘ (the obedient), al-Tā’i‘ (the dutiful), al-Rādī (the contented), al-Muhsin (the doer of good), al-Mukhlis (the sincere), al-Munīb (the one who turns to Allah), al-Rashīd (the rightly guided), and al-Sadīd (the upright). As for giving these names to disbelievers, it is not permissible to allow this, to address them by any of these names, or to refer to them by them. Allah, Mighty and Majestic, is angered by their being given such names.
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As for a kunya (honorific name), it is a form (4) of honouring its bearer and acknowledging his standing, as the poet said (5):
I call him by his kunya to honour him,
And give him no nickname—nicknames are a disgrace. (6)