Shmuel Bais 3:26-28 Orthodox Jewish Bible (OJB)
26 And when Yoav was come out from Dovid, he sent malachim after Avner, which brought him back from the well of Sirah; but Dovid knew it not.
27 And when Avner was returned to Chevron, Yoav took him aside in the sha’ar to speak with him privately, and struck him there under the fifth rib, that he died, for the dahm of Asahel his brother.
28 And afterward when Dovid heard it, he said, I and my mamlachah are naki (innocent) before Hashem ad olam from the dahm of Avner Ben Ner;
2 Samuel 3:26-28 New International Version (NIV)
26 Joab then left David and sent messengers after Abner, and they brought him back from the cistern at Sirah. But David did not know it. 27 Now when Abner returned to Hebron, Joab took him aside into an inner chamber, as if to speak with him privately. And there, to avenge the blood of his brother Asahel, Joab stabbed him in the stomach, and he died.
28 Later, when David heard about this, he said, “I and my kingdom are forever innocent before the Lord concerning the blood of Abner son of Ner.