Hasdai secured a great diplomatic triumph during the difficulties which arose between the kingdoms of León and Navarre, when the ambitious Queen Toda of Pamplona sought the aid of Abd ar-Rahman in reinstating her deposed grandson, Sancho I of León. Hasdai was sent to the court of Navarre; and he succeeded after a long struggle in persuading the queen to go to Córdoba with her son and grandson, in order to prostrate herself before the caliph, her old enemy, and implore the aid of his arms (958). The proud Navarrese allowed herself to be convinced by Hasdai – as a Jewish poet of the time expressed himself - "by the charm of his words, the strength of his wisdom, the force of his cunning, and his thousand tricks."