A simple Google search for "papal ferula" will give you all you need. Its use has been sporadic, but even Pius IX used one. Ratzinger is seen here carrying the very ferula that Pius IX used.

When did Bp. Sanborn make this statement? Do you have evidence of this?
https://en.wikipedia.org/wiki/Papal_ferulaEarly usage and dispute
Traditionally, the popes did not use any ferula, crosier, or pastoral staff as part of the papal liturgy. The use of a staff is not mentioned in descriptions of
Papal Masses in the
Ordines Romani. In the early days of the Church a pope would sometimes carry a crosier, but
this practice disappeared by the time of Pope Innocent III. He noted in his De Sacro altaris mysterio ("Concerning the Sacred Mystery of the Altar", I, 62): "
The Roman Pontiff does not use the shepherd's staff." The reason was that a crosier is often given by the metropolitan archbishop (or another bishop) to a newly elected bishop during his investiture or episcopal ordination. In contrast, the pope does not receive investiture from another bishop and is invested with the pallium during his coronation or the modern inauguration.Re-adoptionDuring the
High Middle Ages, the popes once again began using a staff known as a ferula as part of their insignia. It signified temporal power and governance, which included "the power to mete out punishment and impose penances". The actual form of the staves from this period is not well known, but they were most probably staffs topped with a knob and surmounted by a single-barred cross.
The staff was not a common liturgical item, and its use was limited to a few extraordinary celebrations proper to the pope, such as the opening of the Holy Door and the consecration of churches, during which the pope "took hold of the staff to knock on the door three times and to trace the Greek and Latin letters on the floor of the church".
Modern usageThe pastoral staff carried by the popes since Pope Paul VI is a contemporary single-barred
crucifix, designed by the Italian artist Lello Scorzelli in 1963 and carried and
used in the same manner as a bishop uses his crosier. Paul VI had actually used three other ferulas, similar in style, with the other versions having a cross bar which was straight, or bent upward. Scorzelli's well-known version has the cross bar curving downward, much like the paterissa carried by bishops of the
Eastern Catholic Churches.
[5] Paul VI first used this staff on 8 December 1965, at the closing of the
Second Vatican Council. The Scorzelli staff was the one retained by his successors, starting with
Pope John Paul I. This ferula design is often associated with
Pope John Paul II and is one of his identifying attributes in religious paintings and statuary.
Time stamp is @ 12:00-15:32