The staff ('asa) as a symbol of prophethood and divine authority

قَالَ هِىَ عَصَاىَ أَتَوَكَّؤُا۟ عَلَيْهَا وَأَهُشُّ بِهَا عَلَىٰ غَنَمِى وَلِىَ فِيهَا مَـَٔارِبُ أُخْرَىٰ

He said, "It is my staff; I lean upon it, and I bring down leaves for my sheep and I have therein other uses."