(a) It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "Jibril (peace be upon him) led me in prayer twice at the House (of Allah)," and he mentioned the hadith: "The first time he led me in the Fajr prayer when eating and drinking became forbidden for those fasting, and the second time he led me in the Fajr prayer and prayed it when it was bright."
(b) It is narrated from Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) concerning this event that Jibril (peace be upon him) came to the Messenger of Allah (peace and blessings be upon him) when the light of dawn had risen, and said: "O Muhammad (peace and blessings be upon him)! Pray!" He got up and led the Subh prayer; the second time he prayed it when it was very bright.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 1764