From him, from Ali ibn Khalid, from Ahmad ibn al-Hasan ibn Ali ibn Faddal, from Amr ibn Sa'id, from Musaddiq ibn Sadaqah, from Ammar, from Abu Abdillah عليه السلام, peace be upon him, who said: Imam al-Sadiq عليه السلام said: “If you pray the eclipse prayer (al-kusuf) until the eclipse of the sun or the moon passes, and you prolong your prayer, then that is better. But if you wish to pray and finish your prayer before the eclipse ends, that is permissible. And if you did not know until the eclipse ended, then you came to know after that, there is no eclipse prayer (due upon you). And if someone informed you while you were asleep, and you became aware, then sleep overcame you and you did not pray, then you must make it up.”