Sa’y is two times. Sa’y is recommended, and it is from the beginning of the day until the time of the call. Sa’i is obligatory, and it is from the time of the call until he catches up with the imam bowing from the second rak’ah. The temporary reward for the one who strives is until the beginning of the sermon, and after that, he is a non-temporary sinner, because it is not mentioned in that. As for the temporary reward, it is from a camel to an egg, and between them is a cow, which follows the camel, followed by a ram, and after the ram is a hen, and the egg comes after the hen last, and there is no temporary reward after it. Since the egg is from the hen, and in it the chicken is formed, and in its meaning is the animal that lays eggs, for this reason the egg is joined with the animal at a specific time. Proximity and the intent of animals in the representation is that whose flesh is always often eaten, and whose eating there is no dispute, and with which the life force of th