2 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
24:21And Araunah said, Wherefore is my lord the king come to his servant? And David said, To buy the threshingfloor of thee, to build an altar unto the LORD, that the plague may be stayed from the people.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.