Ibn Jurayj said: I said to Ata: Are the two rak'ahs of Fajr obligatory or voluntary? He said: Do you not know? Then he narrated to me from Ubayd bin Umayr the hadith of Sayyidah Aishah (may Allah be pleased with her) that the Messenger of Allah (peace and blessings be upon him) was not more constant upon any of the voluntary prayers than upon the two rak'ahs of the morning, or of Fajr.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4466
Sayyidah Aishah (may Allah be pleased with her) said that, among the voluntary prayers, the Messenger of Allah (peace and blessings be upon him) took the greatest care of the two Sunnah rak'ahs of the morning.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4467
Sayyidah Aishah (may Allah be pleased with her) narrates from the Prophet (peace and blessings be upon him): "The two rak'ahs of Fajr are better than the world and all that it contains."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4468
Sayyidah Aishah (may Allah be pleased with her) said that the Prophet (peace and blessings be upon him) said: "The two rak'ahs of Fajr are better than the world and all that it contains."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4469
It is narrated from Qatadah (may Allah have mercy on him) that the Prophet (peace and blessings be upon him) said: "The two rak'ahs of Fajr are dearer to me than red camels."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4470
Al-Mu'tamir bin Sulayman narrated it from his father, and in it he said regarding the two rak'ahs of Fajr: "They are dearer to me than the world and all that it contains."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4471
Sayyidah Aishah (may Allah be pleased with her) said that the Prophet (peace and blessings be upon him) prayed Isha, then offered eight rak'ahs standing and two rak'ahs sitting, and prayed two rak'ahs between the adhan and the iqamah, and he (peace and blessings be upon him) never left them.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4472
Sayyiduna Bilal (may Allah be pleased with him) narrated that he came to the Prophet (peace and blessings be upon him) to inform him of the morning prayer, but Sayyidah Aishah (may Allah be pleased with her) kept Sayyiduna Bilal (may Allah be pleased with him) occupied with some matter, asking him about it, until the morning became very bright. The narrator said: Sayyiduna Bilal (may Allah be pleased with him) stood up and informed him of the prayer, and kept informing him repeatedly, but he (peace and blessings be upon him) did not come out. When he (peace and blessings be upon him) came out, he led the people in prayer. Sayyiduna Bilal (may Allah be pleased with him) told the Prophet (peace and blessings be upon him) that Sayyidah Aishah (may Allah be pleased with her) had kept him occupied with some matter, because of which it had become very light, and that he (peace and blessings be upon him) too had been late in coming out. He (peace and blessings be upon him) said: "I was praying the two rak'ahs of Fajr." He said: O Messenger of Allah, you let it become very light. He (peace and blessings be upon him) said: "Even if it had become lighter than this, I would still have prayed these two rak'ahs, and prayed them very well."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 4473