1st Month /10th Day -6th from Sabbath (friday)

Exodus 12:3-6

3Tell the whole congregation of Israel that on the tenth day of this month each man must select a young of the flock [שה] for his family, one per household. 4If the household is too small for a whole young of the flock [שה], they are to share with the nearest neighbor based on the number of people, in accordance with what each person can eat.

5Your young from the flock [שה] must be an unblemished year-old male, and you may take it from the sheep or the goats. 6You must keep it until the fourteenth day of the month...