Will Rebuke spell return unit, including attached equipments to owner's hand?

No, the attached equipment will not return to your hand.

According to RiftJudge FAQ #8967 and Rule 422.4.b, when a unit is returned to your hand (such as by the effect of Rebuke), any gear attached to that unit does not return to your hand with it. Instead, the gear detaches and remains at the battlefield where the unit was previously located.

Following the resolution of the spell, because the gear is now an un-attached card present at a battlefield, it will be Recalled to your base during the next cleanup phase (per Rule 452.1).