Sayyiduna Abu Hurayrah (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "My Ummah will remain upon the fitrah (natural way) as long as they offer the Fajr prayer in the light."
Imam al-Bazzar and Imam al-Tabarani recorded it; its chain contains Hafs bin Sulayman, whom Yahya bin Ma'in, Imam al-Bukhari (may Allah have mercy on him), Abu Hatim and Ibn Hibban declared da'if (weak). Ibn Khirash said: He used to fabricate hadith. According to one report Imam Ahmad declared him "thiqah (trustworthy)", and according to another report he declared him da'if (weak).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 1767