Rabbi Abraham of Askalon obtained a sela from Elijah, because he was very regular in his prayers. He became prosperous and neglected them. The prophet reclaimed the sela and the rabbi became poor. He obtained the coin again on the condition that he would pray regularly.
The Coin Elijah Gave and Took from Rabbi Abraham of Ashkelon
Gaster, Exempla of the Rabbis No. 319 (Codex Gaster 185)