"Do not throw pebbles, for the Prophet of Allah forbade throwing pebbles," or "he disliked the throwing of pebbles." Kahmas (one of the narrators) was not sure.
Sunan an-Nasa'i Book 45, Hadith 110
← Previous Hadith a woman threw pebbles at another woman and the woman who was struck miscarried. The matter was referred to the prophet and he set the blood money for her child at five hundred sheep. And on that day, he forbade throwing pebbles. (Sahih) Abu 'Abdur-Rahman (An-Nasa'i) said: This is an error, and it must be that the intent was one hundred camels. And the prohibition of throwing pebbles has been related from 'Abdullah bin Buraidah, from 'Abdullah bin Mughaffal.

Sunan an-Nasa'i Book 45, Hadith 109 Next Hadith → "The Messenger of Allah ruled that a slave (should be given as Diyah) for a fetus." Tawus said: "A horse would do in place of a slave."

Sunan an-Nasa'i Book 45, Hadith 111