This is not something ancient scriptures would likely have encountered. Would they have the same ritual status as Hindus who traveled abroad?
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related question here - hinduism.stackexchange.com/questions/3898/… – Pratik Bhat Apr 4 '18 at 3:54
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also see hinduism.stackexchange.com/questions/3452/… – zaxebo1 Apr 6 '18 at 0:20