תלמוד על ראש השנה 46:16

HALAKHAH: Rebbi Joḥanan said, even the most error-prone person would not err in this matter, before the sun, after the sun⁷⁵Whether the moon was seen closer to the earth than the sun or farther away.? It only is needed for its concavity; the concavity towards the sun, or the concavity away from the sun⁷⁴As explained in the Halakhah, this refers to the concavity of the visible moon, which must point away from the sun.? Bar Qappara stated both: Before the sun or behind the sun, the concavity towards the sun or the concavity away from the sun? Rebbi Joḥanan said, it is written⁷⁶Job 25:2. Babli 23b. Deut. rabba 5(12).: Rule and fear are with Him, Who makes peace in His heights. During the existence of the sun it never saw the defect of the moon.