Sunan an-Nasa'i 2341
سنن النسائي#2341Da'ifSomething similar was narrated from 'Aishah and Hafsah:"There is no fast except for one who intends to fast before dawn." (Daif)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih Lighairihi
Al-AlbaniSahih
Zubair Ali ZaiDaif
In-book reference: 22:252