اَلْعَدَد 9:5

فَعَمِلُوا ٱلْفِصْحَ فِي ٱلشَّهْرِ ٱلْأَوَّلِ فِي ٱلْيَوْمِ ٱلرَّابِعَ عَشَرَ مِنَ ٱلشَّهْرِ بَيْنَ ٱلْعَشَاءَيْنِ فِي بَرِّيَّةِ سِينَاءَ، حَسَبَ كُلِّ مَا أَمَرَ ٱلرَّبُّ مُوسَى هَكَذَا فَعَلَ بَنُو إِسْرَائِيلَ.

And they kept the passover on the fourteenth day of the first month at even in the wilderness of Sinai: according to all that the LORD commanded Moses, so did the children of Israel.