صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
فصل في الأوقات المنهي عنها - ذكر البيان بأن المدرك ركعة قبل طلوع الشمس من صلاة الغداة عليه إتمام الصلاة بعد طلوع الشمس دون قطعها على نفسه
Section on Prohibited Times - Clarification that one who catches a rak’ah of Fajr before sunrise should complete the prayer after sunrise without stopping.
1 hadith
Hadith 1586
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Prophet Muhammad (peace and blessings be upon him) said: When a person catches the first rak'ah of Fajr before the sun rises, he should complete his prayer, and when a person catches the first rak'ah of Asr before the sun sets, he should complete his prayer.