Midrash for II Kings 4:18

Rabbi Zechariah said: "He will fulfil the desire of them that fear him" (Ps. 145:19). The Holy One, blessed be He, fulfilled the desire of the prophet. She conceived and bare, and the child grew. He went forth to refresh himself, and to look at the reapers. A mishap overtook him, and he died, as it is said, "It fell on a day, that he went out to his father to the reapers" (2 Kings 4:18); this restrained them (from work) until he came (among them), and he died, as it is said, "And he sat on her knees till noon, and then died" (2 Kings 4:20).