Which mission returned samples confirming that molecular precursors for genetic material are actively being collected from space?

Answer

OSIRIS-REx mission from Bennu

Some components, including nucleobases, were found in samples returned from the asteroid Bennu by the OSIRIS-REx mission, confirming active collection of molecular precursors from space.

Which mission returned samples confirming that molecular precursors for genetic material are actively being collected from space?
MeteorSpacehumanDNA