Can he travel to a kaafir country for the sake of upholding family ties?

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Check below answers in case you are looking for other related questions:
Ruling on upholding ties with one’s mother and siblings through breastfeeding
He takes care of his paternal aunt and looks after her affairs – can she give him a gift to the exclusion of his siblings?

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He takes care of his paternal aunt and looks after her affairs – can she give him a gift to the exclusion of his siblings?

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