The five obligatory prayers have definite times; however, the supererogatory and voluntary prayer is permissible at any time except that the Prophet (may Allah's peace and blessings be upon him) has forbidden praying at certain times. Out of their extreme keenness to carry out obligations and the acts of Sunnah, avoid prohibitions, and maintain the trust of reporting the Shariah, the Companions (may Allah be pleased with them) used to correct each other's mistakes and comment on one another. In this Hadīth, ‘Ā’ishah (may Allah be pleased with her) says: "'Umar made a mistake," referring to 'Umar ibn al-Khattāb (may Allah be pleased with him) in reporting the absolute prohibition of prayer after 'Asr. She reported that the Messenger of Allah (may Allah's peace and blessings be upon him) had only forbidden "seeking the rising of the sun and its setting." i.e., he forbade intentionally and deliberately praying when the sun rises or sets but did not forbid praying in general after dawn or after ‘Asr. It is said: Rather, the prohibition of prayer during these two times is not a mistake, and ‘Ā’ishah's opinion was based on her own deduction and interpretation. As for the Hadīth text narrated by ‘Umar (may Allah be pleased with him), others from the Companions also narrated it, and more than one understood it the way ‘Umar (may Allah be pleased with him) understood it. The reason behind the prohibition of prayer during these two times is that the sun rises and sets along with the devil's horn and because some of the disbelievers used to prostrate to the sun and offer prayer to it during these two times. Hence, he forbade praying during them to oppose those disbelievers. Other narrations were reported about permitting prayer at sunrise and sunset, as mentioned in the Two Sahīh Collections: "Whoever catches up with one Rak'ah before the sun rises, he has caught up with the Morning prayer..." When combined with this Hadīth, it is understood that the prohibition refers to the voluntary and supererogatory prayer during such times. As for the one who could not catch up with the prayer at the beginning of its time for a valid excuse, he is permitted to pray at the end of its time and to catch up with the prayer before sunrise and before sunset. Or perhaps the prohibition refers to the act of seeking the rising and setting of the sun on purpose, as for the one who does not do this on purpose - like the one who wakes up from his sleep or the one who remembers after being forgetful - it is permissible for him to pray and there is no blame on him. The Hadīth warns against keenness on praying at the time when the sun rises and sets..