How could he explain to a non-Muslim the reason why he grows a beard?

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Check below answers in case you are looking for other related questions:
Ruling on shaving the beard
Removal of armpit hair by means of depilatory creams

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Related Answers:
What does fitrah mean?
Ruling on dyeing the hair red and yellow
She thinks her husband’s beard is untidy; is she sinning if she asks him to remove it?
Ruling on shaving the beard
Removal of armpit hair by means of depilatory creams

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