Sayyiduna Urwah bin Mudarris (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) used to offer the morning prayer when true dawn had broken.
Imam al-Bazzar recorded it; its chain contains Dawud bin Yazid al-Awdi, whom Yahya bin Ma'in and Imam al-Nasa'i (may Allah have mercy on him) declared da'if (weak); Shu'bah and Sufyan narrated hadith from him. Ibn Adi said: I have not seen any munkar (objectionable) narration from him when a "thiqah (trustworthy)" person narrated from him. Although this man is not strong in hadith, when a "thiqah (trustworthy)" person narrates hadith from him, his hadith will be accepted.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 1784