Surat Maryam 19:27-28 states:
Then she brought him to her own folk, carrying him.
They said: O Mary! Thou hast come with an amazing thing.
O sister of Aaron! Thy father was not a wicked man
nor was thy mother a harlot.
This passage has been much debated and this page will provide links to the arguments available on the web.
It has an entry in the Qur'an contradictions list.
Muslim article: Mary, Sister of Aaron?
Christian response: Is Mary the Sister of Aaron?
Links to the resulting newsgroup discussion: * / *, *, *, * / *, *, * / *, *, *, *, *, ?, ?, *
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