Hazrat Jabir narrates that during the Battle of Khandaq, Hazrat Umar came while reproaching the Qurayshi leaders. He was saying, "O Messenger of Allah! I have not performed the Asr prayer until the sun was about to set." The Holy Prophet (peace and blessings be upon him) said, "By Allah! I too have not yet performed the prayer." After that, the Noble Prophet (peace and blessings be upon him) performed ablution and, after the sun had set, offered the Asr prayer, and after Asr, performed the Maghrib prayer.

Hazrat Imran bin Husain narrates that we were on a journey with the Messenger of Allah, peace and blessings be upon him. We traveled at night, and in the last part of the night, we camped, and no camp is more beloved to a traveler than this one. Then we slept so soundly that the heat of the sun woke us up. On this occasion, Hazrat Umar began to say the takbeer. When the people woke up, they complained about this incident to the Messenger of Allah, peace and blessings be upon him. The Noble Prophet, peace and blessings be upon him, said that there is nothing to worry about. Move from here. We had only gone a little distance when we camped again, the call to prayer was given, and the Noble Prophet, peace and blessings be upon him, led the people in prayer.

Hazrat Aamir and Ibrahim say that if you are performing the Asr prayer and you remember that you have not yet performed the Zuhr prayer, then break the prayer and first perform the Zuhr prayer, then the Asr prayer.

4834 - From Mughira, from Ibrahim, who said: If you are in the ‘Asr prayer and remember that you did not pray Dhuhr, then leave, pray Dhuhr, and then pray ‘Asr.

Ibrahim, regarding the person who forgets to perform the Zuhr prayer and remembers it at the time of Asr prayer, said that he should break the Asr prayer and first perform the Zuhr prayer, then perform the Asr prayer.

Hazrat Mughira states in his narration that if he remembers after offering the Asr prayer, then the Asr prayer is done; now he should offer the Zuhr prayer.

Hazrat Zuhri says that if a person remembers during the Asr prayer that he has not performed the Zuhr prayer, he should break this prayer and first perform the Zuhr prayer, then the Asr prayer.

Hazrat Sha’bah says that we asked Hazrat Hakam and Hazrat Hammad about a person who is performing one prayer and remembers another prayer. Both of them said that if he remembers before reciting Tashahhud or before sitting for the duration of Tashahhud, he should leave that prayer and first perform the other prayer, and if he remembers after Tashahhud, he should count that prayer and then return to the other prayer.

Hasan says that (if the Zuhr prayer has been missed) one should first offer the Asr prayer and then the Zuhr.

Hazrat Tawus says that if a person remembers during the Asr prayer that he has not performed the Zuhr prayer, then he should first complete the Asr prayer and then perform the Zuhr prayer.