Abstract: Telescopic assembly with locking device in retracted configuration A telescopic assembly (10) includes: a first (12) and a second (14) body; the second body comprising a rod capable of sliding into the first body between extended and retracted configurations; and a device (18) for locking in the retracted configuration. The locking device includes a ferrule (60) positioned on the rod, the ferrule comprising an internal stop (80) and the first tubular body comprising a counter-stop (34), capable of cooperating to lock the first tubular body and the ferrule. The ferrule is locked in translation relative to the second body (14) and rotatable around said second body, between an unlocked position, allowing the sliding of the second body into the first body (12), and a locked position retaining the second body in the retracted configuration.