Sayyiduna Abu Sa'id Khudri (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "There are two days on which you should not fast and two periods in which you should not perform prayer, because the Christians and Jews seek (to worship) at these times: the day of Eid al-Fitr and the day of Eid al-Adha (are forbidden for fasting), and after the Fajr prayer until the sun rises and after the Asr prayer until the sun sets (it is forbidden to pray)."

Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) narrates: The Noble Prophet (peace and blessings be upon him) said: "After the true dawn appears, only two rak‘ahs (i.e., the Sunnah of Fajr) will be performed (among the voluntary prayers)."

Qasim bin Muhammad narrates: We went to the service of Sayyida Aisha (may Allah be pleased with her) before the morning prayer. One day we went to her and she was performing prayer at that time. We asked her: "Which prayer is this?" She replied: "I had fallen asleep at night and was not able to perform some nawafil, so I did not want to leave them."