It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Fajr (dawn) is of two kinds: one in which eating becomes forbidden and the prayer becomes permissible, and the other in which eating is permissible and the prayer is not permissible."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2152
Hadith Gradingمحدثین:صحيح لغيره
Hadith Takhrij«صحيح لغيره۔ مضٰي تخريجه في الحديث 1767»