(68) باب ذِكْرِ اخْتِلاَفِ النَّاقِلِينَ لِخَبَرِ حَفْصَةَ فِي ذَلِكَ
It was narrated from Ibn 'Umar that he used to say:
"None should fast except the one who intended to fast before dawn."
Reference: Sunan an-Nasa'i 2343
In-book reference: Book 22, Hadith 254
English translation: Vol. 3, Book 22, Hadith 2345