Related for Sukkah 61:19

If one does not have a citron, he must not take in his hand a quince, or any other fruit. Withered fruits are valid, but dried ones are not valid. Rabbi Yehudah, however, says that even dried-up ones are valid. And again he says: There is a story of the men of Carbin that they used to transmit their lulavs in the time of persecution. They said to him, The time of persecution is no proof.