A surgical stapling instrument comprising a stapling assembly, a shaft, a firing member, a closure member, a manually-actuatable closure trigger, and a motor is disclosed. The stapling assembly comprises a first jaw and a second jaw. The first jaw is movably coupled to the second jaw. The shaft is configured to support the stapling assembly. The firing member is configured to transmit a firing motion to the stapling assembly. The firing member comprises a cutting member, a first camming member configured to engage the first jaw, and a second camming member configured to engage the second jaw. The closure member is configured to transmit a push-to-close motion to the stapling assembly. The manually-actuatable closure trigger is operable to impart the push-to-close motion to the closure member. The motor is operably coupled to the firing member to impart the firing motion to the firing member.