The Messenger of Allah ﷺ said, "The distinction between our fasting and the fasting of the People of the Book is the pre-dawn meal."
أخبرنا قتيبة قال حدثنا الليث عن موسى بن علي عن أبيه عن أبي قيس
قال رسول الله ﷺ إن فصل ما بين صيامنا وصيام أهل الكتاب أكلة السحور
Etc. Hadith: 1096. Its takhrij: Reported by Muslim, the Book of Fasting, the Chapter on the Merit of Suhur and the Emphasis on its Recommendation, through Qutayba, and it is in Kubra, hadith: 2476.Layth is Ibn Saad, and Musa bin Ali bin Rabah is trustworthy, and Abu Qais is the freed slave of Amr bin As, trustworthy.