Praise be to Allaah.
If one of your neighbour’s daughters breastfeeds this child
for five feedings, he will become her son through breastfeeding (radaa’ah)
and your neighbour will become his grandmother through breastfeeding, and
all her daughters – the neighbour’s daughters – will become his maternal
aunts through breastfeeding. Thus she will become able to raise him
throughout his childhood and beyond with no problems, because he will be a
mahram to her.
This is not regarded as a trick, rather it is a legitimate
shar’i solution which will enable this woman to raise this child and take
care of him, and there is the hope that she will be rewarded for that by
Allaah. The Prophet (peace and blessings of Allaah be upon him) said to
the wife of Abu Hudhayfah concerning Saalim, the freed slave of Abu
Hudhayfah: “Breastfeed him, then you will become his mahram.” Narrated by
Muslim (1453).
And Allaah knows best.