The Grand Nagus's staff is an item that is held by the Ferengi Grand Nagus. (DS9: "The Nagus", "Rules of Acquisition") It is traditional for an individual to kiss the head of the staff upon receiving advice from the Nagus. (DS9: "The Nagus", "The Search, Part I")

The Grand Proxy carries the staff as a symbol of the authority granted to him by the Grand Nagus. (VOY: "False Profits")

In 2371, Zek gave the staff to Benjamin Sisko to prove to Quark that he wanted him to help the USS Defiant to locate the Founders. (DS9: "The Search, Part I")

While living in the Vic's Las Vegas Lounge holoprogram, Nog commented that a cane given to him by Vic Fontaine (a replica of a cane used by Errol Flynn) was reminiscent of the Grand Nagus's staff. (DS9: "It's Only a Paper Moon")

As he passed the reigns of power to Rom, Zek also gave him the staff, a symbol of the power it represents. (DS9: "The Dogs of War")