Hafsa bint Umar bin Khattab reported,

The Prophet ﷺ said, "Whoever does not form the intention to fast during the night, there is no fast for him."

Azami 4348

Sahih

عن حفصة زوج النبي ﷺ

عن النبي ﷺ قال: من لم يبيت الصيام من الليل فلا صيام له.

الأعظمي 4348صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Fasting
Chapter
Obligation of fasting, its virtue, and its rulings
Section
Obligation of making the intention for obligatory fasting before Fajr
Numbering
Jami al-Kamil 4348 (2nd edition)
Azami 4348