Islamic ruling on missionary groups adopting Muslim orphans

 

What is the ruling of Islam on missionary groups adopting Muslim orphans? Can you give us evidence (daleel) concerning that?

Praise be to Allaah. 

It
is not permissible to hand over Muslim orphans to the kuffaar, Christians
or others, because of the great danger that this poses to the orphans,
and because they will not be given an Islamic upbringing. They (orphans)
are a trust (amaanah) for which the Muslims are responsible, so it is
not permissible to place them under the guardianship of anyone else.
Allaah says (interpretation of the meaning):

“The believers, men and women, are Awliyaa’ (helpers,
supporters, friends, protectors) of one another” [al-Tawbah
9:71]

 “And
those who disbelieve are allies of one another, (and) if you (Muslims
of the whole world collectively) do not do so [i.e. become allies, as
one united block under one Khaleefah (a chief Muslim ruler for the whole
Muslim world) to make victorious Allaah’s religion of Islamic Monotheism],
there will be Fitnah (wars, battles, polytheism) and oppression on the
earth, and a great mischief and corruption (appearance of polytheism).”
[al-Anfaal 8:73]