Midrash for Moed Katan 32:27
על שמונה מאות חלל בפעם אחת שהיה זורק חץ ומפיל שמונה מאות חלל בפעם אחת והיה מתאנח על מאתים דכתיב (דברים לב, ל) איכה ירדף אחד אלף
What does this mean? - Said R'Abbahu, It means: And these are the mighty deeds of David: 'Josheb-basshebeth' - [which means], sitting at the session;<span class="x" onmousemove="('comment',' Playing on the meaning of the words: josheb _ sitting; basshebeth _ at the 'sitting' or 'Session' (of scholars) .');"><sup>36</sup></span> [that is], When David sat at the College Session he was not seated on cushions and coverlets but on the [bare] ground.<span class="x" onmousemove="('comment',' Cf. Mar 'Ukba above.');"><sup>37</sup></span> For all the time that his Master, Ira the Jairite,<span class="x" onmousemove="('comment',' II Sam. XX, 26.');"><sup>38</sup></span>