اَلْعَدَد 18:16

وَفِدَاؤُهُ مِنِ ٱبْنِ شَهْرٍ تَقْبَلُهُ حَسَبَ تَقْوِيمِكَ فِضَّةً، خَمْسَةَ شَوَاقِلَ عَلَى شَاقِلِ ٱلْقُدْسِ. هُوَ عِشْرُونَ جِيرَةً.

And those that are to be redeemed from a month old shalt thou redeem, according to thine estimation, for the money of five shekels, after the shekel of the sanctuary, which is twenty gerahs.