Halakhah for Yoma 106:17
ופליגא דעולא דאמר עולא שאל רבי מתיא בן חרש את רבי שמעון בן יוחאי ברומי וכי מאחר שרבי אליעזר מלמדנו פעם ראשונה ושניה ארון גלה לבבל ראשונה הא דאמרן (דברי הימים ב לו, י) ויביאהו בבלה עם כלי חמדת בית ה' שניה מאי היא דכתיב (איכה א, ו) ויצא מבת ציון
i.e., the Ten Commandments contained therein R'Judah B'Ilai<span class="x" onmousemove="('comment',' Corrected according to Jer. Shek. VI; cur. edd. b. Lakish.');"><sup>20</sup></span> said: The Ark was hidden [buried] in its own place, as it was said:And the staves were so long that the ends of the staves were seen from the holy place, even before the Sanctuary; but they could not be seen without; and there they are unto this day.<span class="x" onmousemove="('comment',' I Kings VIII, 8.');"><sup>21</sup></span> Now he<span class="x" onmousemove="('comment',' The one who reports in this Baraitha the view of R. Simeon b. Yohai.');"><sup>22</sup></span> disputes 'Ulla for 'Ulla said: R'Matthiah B'Heresh asked R'Simeon B'Yohai in Rome:<span class="x" onmousemove="('comment',' Who had gone there to plead with the Emperor on behalf of the people of Israel afflicted by emergency decrees of the Governor, see Graetz II, 443 (Engl. ed.) .');"><sup>23</sup></span> Now since R'Eliezer had taught us on the first and second occasion that the Ark went into exile to Babylonia (the first was the one which we said just now: 'And he had him brought to Babel together with the precious vessels of the house of the Lord', but what is the second one? - Because it is written: And gone is from the daughter of Zion