Document Requirements for Son or Daughter(HELP PLEASE)

[romaman]

Hello everyone,
my mother who is a green card holder(just got it last year through me ) wants to file for my brother and sister who live in Morocco and they are over 21 but unmarried.
what are the paperwork needed along with the I-130 that she needs to send first.

best,

[inadmissible]

Read the Form I-130 Instructions carefully