´It was narrated from Hafsah that the Prophet said:` "Whoever does not have the intention of fasting before dawn, then there is no fast for him." (Daif)
Hadith ReferenceSunan an-Nasa'i / The Book of Fasting / Hadith: 2334
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:ضعيف، إسناده ضعيف، ابو داود (2454) ترمذي (730) انوار الصحيفه، صفحه نمبر 338