Reference for Menachot 13:15
בעו מיניה מדרב ששת מהו לקמוץ מכלי שעל גבי קרקע אמר ליה פוק חזי מה עבדין לגאו ארבעה כהנים נכנסין שנים בידם ב' סדרים ושנים בידם שני בזיכין וארבעה מקדמין לפניהם שנים ליטול שני סדרים וב' ליטול ב' בזיכין
Said R'Nahman, 'Then you require three priests'<span class="x" onmousemove="('comment',' One to hold the vessel containing the meal-offering, a second to hold the vessel into which the handful is to be put, and a third to take the handful out of the one and put it into the other. This number of priests was necessary as, it must be remembered, only the right hand was to be used in any service, and therefore one priest could not hold the two vessels, one in each hand. It was, however, possible for the one priest to hold both vessels, one after the other, so that only two priests would be necessary. V. Sh. Mek.');"><sup>17</sup></span> He replied, '[I don't mind] if thirteen are required as with the Daily Sacrifice'.<span class="x" onmousemove="('comment',' V. Yoma 25a.');"><sup>18</sup></span> He raised the following objection: [We have learnt:] This is the general rule: if one took out the handful or put it into the vessel or brought it nigh or burnt it, [intending] to eat a thing that it is usual to eat [outside its proper place] etc.<span class="x" onmousemove="('comment',' Infra 12a.');"><sup>19</sup></span> Now there is no mention here of lifting up [the vessel]! - The Tanna merely teaches the order of the various services.<span class="x" onmousemove="('comment',' Which can all be performed by the same priest; the Tanna, however, did not intend to give the number of priests employed in each service. The words 'but not the order of the priests', found in cur. edd., are obviously a gloss, and are omitted in MS.M. and also in Sh. Mek.');"><sup>20</sup></span> The question was put to R'Shesheth: May one take the handful from a vessel that is upon the ground? He answered, Go and see what is done within [the Temple]:<span class="x" onmousemove="('comment',' V. Infra 99b.');"><sup>21</sup></span> Four priests entered in, two having in their hands the two rows [of Shewbread] and two the two dishes [of frankincense]; and four priests went in before them, two to take away the two rows and two to take away the two dishes.