سُنَنُ النَّسَائِيِّ
Sunan an-Nasa’i 2339
The Book of Fasting
Mentioning the Differences Narrated by those who Reported the Narration from Hafsah concerning that
أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ أَنْبَأَنَا سُفْيَانُ، عَنِ الزُّهْرِيِّ، عَنْ حَمْزَةَ بْنِ عَبْدِ اللَّهِ بْنِ عُمَرَ، عَنْ حَفْصَةَ، قَالَتْ لاَ صِيَامَ لِمَنْ لَمْ يُجْمِعِ الصِّيَامَ قَبْلَ الْفَجْرِ .
It was narrated that Hafsah said: "There is no fast for the one who does not intend to fast before dawn.
Sunan an-Nasa'i, 2339Sahih (Darussalam)