Genesis 15:8-10 English Standard Version (ESV)
8 But he said, “O Lord God, how am I to know that I shall possess it?” 9 He said to him, “Bring me a heifer three years old, a female goat three years old, a ram three years old, a turtledove, and a young pigeon.” 10 And he brought him all these, cut them in half, and laid each half over against the other. But he did not cut the birds in half.
Genesis 15:8-10 New International Version (NIV)
8 But Abram said, “Sovereign Lord, how can I know that I will gain possession of it?”
9 So the Lord said to him, “Bring me a heifer, a goat and a ram, each three years old, along with a dove and a young pigeon.”
10 Abram brought all these to him, cut them in two and arranged the halves opposite each other; the birds, however, he did not cut in half.