Reference for I Samuel 28:6

וַיִּשְׁאַ֤ל שָׁאוּל֙ בַּֽיהוָ֔ה וְלֹ֥א עָנָ֖הוּ יְהוָ֑ה גַּ֧ם בַּחֲלֹמ֛וֹת גַּ֥ם בָּאוּרִ֖ים גַּ֥ם בַּנְּבִיאִֽם׃

And when Saul inquired of the LORD, the LORD answered him not, neither by dreams, nor by Urim, nor by prophets.