You’re assumptions are very broad
Ok so say her mother is not muslim that makes her a bad person? Incapable of raising a child with standards.?! Seriously? Just because he said he doesnt want her growing up with the mum u assume hes a good muslim.? Maybe he is just afraid he wont be able to control his child as he wishes and pleases. Has anyone thought what the child wants.? He should have bloody thought about how he wants his kids raised before marrying a western woman and having child with her. Or was he just looking for a passport.?
Secondly you say that kids raised in the west by single mums are raised in questionable conditions.? Statistics please. I was raised by my mother after my father died my brother was 1 and i had siblings ranging from 4-15 i was 17 at the time and my mother coped fine and we have the freedom we see as acceptable and mashallah wer uni graduates and in college school etc. just because u have seen a few cases doesnt mean single moms in the west are not capable at all.!
OP Speak with your husband and try to find out more about the situation without making it sound like ur the pne whose going to report the cousin. Also if she has been taken without mothers permission it needs to be reported.