The Messenger of Allah ﷺ said, "Indeed, Allah and His angels send blessings upon those who eat the predawn meal."
قال رسول الله ﷺ: إن الله وملائكته يصلون على المتسحرين.
No references are available.
Ibn Hibban (3467) narrated it from Ahmad bin Hasan bin Abu Saghir, who said, Ibrahim bin Munqidh told us, Idris bin Yahya told us, from Abdullah bin Ayyash bin Abbas, from Abdullah bin Sulayman Tawil, from Nafi, from Ibn Umar, and he related it.Its chain of transmission is hasan, on account of narrators who do not rise to the level of being fully trustworthy, among them Idris bin Yahya, who is Khawlani Misri, his teacher Abdullah bin Ayyash bin Abbas, and his teacher Abdullah bin Sulayman Tawil. For more, see Al-Iman bil-Malaikah.