Reference for Pesachim 94:11
א"ל והא את הוא דאמרת בעאי מיניה מרב חסדא ואמרי לה בעאי מיניה מרב הונא הביא שה מאפר ושחטו תמיד ביו"ט מהו
And is mukzeh a Scriptural [interdict]? - Yes, he replied, for it is written, And it shall come to pass on the sixth day that they shall prepare that which they bring in;<span class="x" onmousemove="('comment',' Ex. XVI, 5. This teaches that only what is 'prepared', as opposed to mukzeh, may be handled on Sabbaths and Festivals.');"><sup>19</sup></span> and its 'warning' [injunction] is [learnt] from here, [viz. ,] from, thou shalt not do any manner of work.<span class="x" onmousemove="('comment',' Ex. XX, 10. Flagellation is administered only for the violation of a negative injunction, not an affirmative precept. The first verse quoted belongs to the latter category, hence the second verse must be added. Thus, since the use of mukzeh is forbidden by the first verse, making a fire with it is all ordinary labour forbidden by the second. - Though the second verse refers to the Sabbath, whereas we are here treating of the Festival, these two are alike in respect to work, save that the preparation of food is permitted on Festivals, but not on the Sabbath. Once however it is shown that a particular action is forbidden, it does not matter whether it is the Sabbath or a Festival.');"><sup>20</sup></span>