טו אמר רבא תן מנה לפלוני
15 the firstborn is not redeemed: in respect of terumah,<span class="x" onmousemove="('comment',' V. Glos. If terumah is given to the priest on this condition.');"><sup>24</sup></span> he fulfils the duty of 'giving', yet it is forbidden to act thus, as it looks like a priest who ass the threshing floor.<span class="x" onmousemove="('comment',' Of an Israelite, in order to receive the terumah. The Rabbis considered this undignified, and enacted that such a priest should not receive terumah. Now, if a priest accepts terumah on this condition, he offers an inducement to the Israelite to give it to him in the future too, and therefore Raba forbade the practice, though valid if done.');"><sup>25</sup></span> What is Raba's opinion: if he holds that a gift on condition that it be returned is a val gift, then even the others too [are valid]; whilst if he holds that it is not a valid gift, then even in the cas terumah it is not [valid]? Furthermore, It was Raba who ruled: A gift on condition that it is returned is valid. For Raba said: [If one says to another,] 'Here you have this citron, on condition that you return it to me,' if [the other] takes and [then] returns it, he fulfils his duty; if not, he does not fulfil [it]!<span class="x" onmousemove="('comment',' The reference is to Lev. XXIII, 40: And ye shall take you on the first day (of the Feast of Tabernacles) the fruit of goodly trees (interpreted by the Rabbis as referring to the citron) , branches of palm trees etc. The Rabbis ruled that this 'taking' requires one's own fruit, and to this Raba alludes. If the recipient carries out the stipulation, it was his for the period of 'taking', and so he fulfils his duty; otherwise, it was not his even then, and his duty is not fulfilled. Thus Raba holds a conditional gift valid.');"><sup>26</sup></span> - But said R'Ashi: in the case of all it [the conditional gift] is valid, with the exception in that of a woman, because a woman cannot be acquired by barter.<span class="x" onmousemove="('comment',' V. infra 28a; the article given as barter was generally returned, and so when money is thus given as kiddushin, it looks like barter.');"><sup>27</sup></span> R'Huna Mar, son of R'Nehemiah, said to R'Ashi: We teach in Raba's name even as you [have stated]. Raba said: [If a woman says,] 'Give a maneh to So-and-so,