كتاب الصيام
13  
The Book of Fasting
(9)
Chapter: The virtue of sahur, which is recommended. It is recommended to delay it and to hasten the breaking of the fast
(9)
باب فَضْلِ السُّحُورِ وَتَأْكِيدِ اسْتِحْبَابِهِ وَاسْتِحْبَابِ تَأْخِيرِهِ وَتَعْجِيلِ الْفِطْرِ ‏‏
Sahih Muslim 1098 a

Sahl b. Sa'd (Allah be pleased with him) repotted Allah's Messenger (ﷺ) as saying:

The people will continue to prosper as long as they hasten the breaking of the fast.
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، أَخْبَرَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، عَنْ أَبِيهِ، عَنْ سَهْلِ، بْنِ سَعْدٍ - رضى الله عنه - أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏ "‏ لاَ يَزَالُ النَّاسُ بِخَيْرٍ مَا عَجَّلُوا الْفِطْرَ ‏"‏ ‏.‏
Reference : Sahih Muslim 1098a
In-book reference : Book 13, Hadith 60
USC-MSA web (English) reference : Book 6, Hadith 2417
  (deprecated numbering scheme)