LEV549 At times, one who speaks lashon hara also violates the prohibition of, לֹֽא־תִשְׂנָ֥א אֶת־אָחִ֖יךָ בִּלְבָבֶ֑ךָ, “Do not hate your brother in your heart" (Vayikra 19:17). For example, if one acts friendly toward a particular person while in his presence, but degrades that person to others behind his back, then speaker has violated this prohibition. All the more so if the speaker explicitly instructs the listeners not to tell the person what he said about him, then the speaker definitely transgresses this prohibition.