The Book of Prayer
Bulugh al-Maram #513
كتاب الصلاة
زَادَ أَحْمَدُ: «إِلَّا اَلْمَغْرِبَ فَإِنَّهَا وِتْرُ اَلنَّهَارِ, وَإِلَّا اَلصُّبْحَ, فَإِنَّهَا تَطُولُ فِيهَا اَلْقِرَاءَةُ»
Ahmad added, 'Except the Maghrib (prayer) for it is the Witr (prayer) of the day; and except the Fajr (prayer), since the recitation (of the Qur'an) is prolonged in it.'
زَادَ أَحْمَدُ: "إِلَّا اَلْمَغْرِبَ فَإِنَّهَا وِتْرُ اَلنَّهَارِ, وَإِلَّا اَلصُّبْحَ, فَإِنَّهَا تَطُولُ فِيهَا اَلْقِرَاءَةُ"
Ahmad added, 'Except the Maghrib (prayer) for it is the Witr (prayer) of the day; and except the Fajr (prayer), since the recitation (of the Qur'an) is prolonged in it.'
— Bulugh al-Maram, Hadith 513