English: “You shall offer” — this teaches that it comes as a voluntary offering of two (partners).
In Sifra: The plural verb takrivu is not only generic address to the nation; it is read as permitting joint ownership of a single nedavah. Two people may share one offering as partners.
Type of Learning
Ribbuy from the plural verb — nedavas shenayim (partners’ voluntary offering).
What Is Learned
Partners may jointly bring a single nedavah offering. The plural “you shall offer” is the textual basis for shared dedication and shared bringing, not only for multiple individuals each acting alone.