It is narrated from Sayyiduna Tariq bin Ashyam (may Allah be pleased with him), the father of Abu Malik al-Ashja'i (may Allah have mercy on him), that the Messenger of Allah (peace and blessings be upon him) said: "Whoever prays Fajr is under the covenant and protection of Allah, and his reckoning rests with Allah."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Abu Malik except Isma'il; al-Haytham bin al-Yaman is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب العين / 4052
Hadith Takhrij«أخرجه الطبراني فى «الكبير» برقم: 8188»