"There is no person who kills a small bird or anything larger, for no just reason, but Allah will ask him about it." It was said: "O Messenger of Allah, what does 'just reason mean?" He said: "That you slaughters it and eat it, and o not cut off its head and throw it aside,"
Sunan an-Nasa'i Book 43, Hadith 85
← Previous Hadith "The messenger of Allah forbade us from using anything with a soul as a target." (Sahih )

Sunan an-Nasa'i Book 43, Hadith 84 Next Hadith → "I heard Sharid say: 'I herd the Messenger of Allah say: Whoever kills a small bird for no reason, it will beseech Allah on the Day of Resurrection saying: O Lord, so and so killed me for no reason. And he did not kill me for any beneficial purpose."'

Sunan an-Nasa'i Book 43, Hadith 86