2 Samuel 18:22

Then Ahimaaz the son of Zadok said yet again to Joab, “But come what may, please let me also run after the Cushite.” Joab said, “Why do you want to run, my son, since you will have no reward for the news?”

Then said Ahimaaz the son of Zadok yet again to Joab, But howsoever, let me, I pray thee, also run after Cushi. And Joab said, Wherefore wilt thou run, my son, seeing that thou hast no tidings ready?