1 Chronicles (Author Compiled by Isaiah and Ezra from records of Nathan, Gad, Iddo, Ahijah, Jehu and others.)
11:20And Abishai the brother of Joab, he was the chief of three; and he brandished his spear against three hundred and slew them; and he had a name among the three.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.