صحیح ابن حبان
Ibn Hibban
كتاب الصلاة
Book of Prayer
فصل في الأوقات المنهي عنها - ذكر ما يجب على المرء إذا انفجر الصبح أن لا يركع إلا ركعتي الفجر
Section on Prohibited Times - Instruction that after dawn, only the two rak’ahs of Fajr should be prayed.
1 hadith
Hadith 1587
Sayyiduna Abdullah bin Umar (may Allah be pleased with them) narrates this statement from Sayyidah Hafsah (may Allah be pleased with her): The Prophet Muhammad (peace and blessings be upon him) after the true dawn would only perform the two Sunnah rak'ahs of Fajr. (That is, he would not perform any other voluntary prayer.)