Paṭhamanirayasaggasutta
“Dasahi, bhikkhave, dhammehi samannāgato yathābhataṁ nikkhitto evaṁ niraye. Katamehi dasahi? Idha, bhikkhave, ekacco pāṇātipātī hoti, luddo lohitapāṇi hatapahate niviṭṭho adayāpanno sabbapāṇabhūtesu.
Heaven and Hell (1st)
“Someone with ten qualities is placed in hell as if delivered there. What ten? It’s when someone kills living creatures. They’re violent, bloody-handed, a hardened killer, merciless to all living beings.