"Again, in Siwan, they celebrate two days, on which they go to their synagogues, recite the Shema, and offer up prayers, read out of the Torah, and translate from the books of their Prophets, curse our king, and execrate our government. This is the holiday which they call Azarta, the closing festival. They ascend to the roofs of their synagogues, and throw down apples, which are picked up by those below, with the words, 'As these apples are gathered up, so may we be gathered together from our dispersion among the heathen.' They say they observe this festival, because on these days the Torah was revealed to their ancestors on Mount Sinai.
The Forgotten Custom Observed in the Month of Shavuot
Legends of the Jews 12:127