Yes - generally we ask for an LOE explaining relationship

(2) Standards for Gifts

(a) Acceptable Sources of Gifts Funds Gifts may be provided by:

the Borrower’s Family Member;
the Borrower’s employer or labor union;
a close friend with a clearly defined and documented interest in the Borrower;
a charitable organization;
a governmental agency or public Entity that has a program providing homeownership assistance to:
- low or moderate income families; or
- first-time homebuyers.
Any gift of the Borrower’s MRI must also comply with the additional requirements set forth in Source Requirements for the Borrower’s MRI.

Original question:
Can FHA borrowers get a gift from a friend, or does it have to be a family member? Thanks!