Beis Shammai say: We may not place bundles of flax into the oven, unless there is sufficient [time] for them to become heated while it is yet day. Nor [may we place] wool into the vat, unless there is sufficient [time] for it to absorb the color. But Beis Hillel permit [these acts]. Beis Shammai say: We may not spread snares for beasts, birds or fish, unless there is sufficient [time] to be captured while it is yet day. But Beis Hillel permit [this].