It was narrated from Ibn 'Umar that the Messenger of Allah (ﷺ) said:
"Bilal calls the Adhan during the night, so eat and drink until Ibn Umm Maktum calls (the Adhan)" (FR)
English reference (FR): Vol. 1, Book 7, Hadith 638 (FR)
Arabic reference (FR): Book 7, Hadith 644 (FR)