Reference: Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘Ilmiyyah wal-Iftaa. – Fatwa No. 11455
Fataawa Ramadhaan – Volume 1, Page 162, Fatwa No.94
Question: How does a person make the intention to fast in Ramadhaan? Is simply knowledge of the start of Ramadhaan sufficient to fast the rest of the days?
Response: The intention takes the form of a determination and a resolve to fast, and it is imperative to determine the intention to fast in Ramadhaan during the night and every night.
And with Allaah lies all the success, and may Allaah send prayers and salutations upon our Prophet Muhammad (sal-Allaahu ‘alayhi wa sallam) and his family and his companions.