Numbers 35:23

The English Standar Version

or used a stone that could cause death, and without seeing him dropped it on him, so that he died, though he was not his enemy and did not seek his harm,

Cross References

Numbers 35:22

"But if he pushed him suddenly without enmity, or hurled anything on him without lying in wait

Numbers 35:24

then the congregation shall judge between the manslayer and the avenger of blood, in accordance with these rules.