Sahih al-Bukhari 6861

Qutayba ibn Saʿid narrated to us: Jarir narrated to us, from al-Aʿmash, from Abu Waʾil, from ʿAmr ibn Shurahbil, who said: ʿAbdullah said: A man asked, “Messenger of God, which sin is greatest in God’s sight?” He said, “That you set up a rival to God, though He created you.” The man asked, “Then which?” He said, “That you kill your child for fear that he will eat with you.” He asked, “Then which?” He said, “That you commit adultery with your neighbor’s wife.” Then God, Mighty and Majestic, sent down in confirmation: “Those who do not invoke another god alongside God, who do not kill a soul that God has forbidden except with due right, and who do not commit adultery—for whoever does that will meet its penalty,” and the rest of the verse.