Reference for Bava Batra 29:10
קא חשיב משה וקא חשיב הימן והאמר רב הימן זה משה כתיב הכא הימן וכתיב התם (במדבר יב, ז) בכל ביתי נאמן הוא תרי הימן הוו
and it is written elsewhere, <i>Who hath raised up righteousness from the East</i>.<span class="x" onmousemove="('comment',' Isa. XLI, 2. The word 'ezrahi' is also taken to mean 'eastern', while 'Ethan' (strong) is regarded as equivalent to 'righteous'. ');"><sup>17</sup></span> [The passage above] reckons both Moses and Heman. But has not Rab said that Moses is Heman, [the proof being] that the name Heman is found here [in the Psalms] and it is written elsewhere [of Moses], <i>In all my house he is faithful</i>?<span class="x" onmousemove="('comment',' The word 'heman' is also taken to mean 'faithful'. ');"><sup>18</sup></span>