The Book of Prayer
Bulugh al-Maram #207
كتاب الصلاة
وَفِي رِوَايَةِ عَبْدِ اَلرَّزَّاقِ: «لَا صَلَاةَ بَعْدَ طُلُوعِ اَلْفَجْرِ إِلَّا رَكْعَتَيْ اَلْفَجْرِ»
In another narration:
'Abdur-Razzaq also narrated: “There is no Salat (voluntary prayer) after the break of dawn ecept the two (Sunnah) Rak'a of Fajr.”
وَفِي رِوَايَةِ عَبْدِ اَلرَّزَّاقِ: "لَا صَلَاةَ بَعْدَ طُلُوعِ اَلْفَجْرِ إِلَّا رَكْعَتَيْ اَلْفَجْرِ"
'Abdur-Razzaq also narrated: "There is no Salat (voluntary prayer) after the break of dawn ecept the two (Sunnah) Rak'a of Fajr."
— Bulugh al-Maram, Hadith 207