The Messenger of Allah ﷺ said, "Bilal calls the adhan at night," or, "Ibn Umm Maktum calls the adhan at night, so eat and drink until Ibn Umm Maktum calls the adhan."
حدثنا عفان حدثنا شعبة قال عبد الله بن دينار أخبرني قال سمعت
قال رسول الله ﷺ إن بلالا ينادي بليل أو ابن أم مكتوم ينادي بليل فكلوا واشربوا حتى ينادي ابن أم مكتوم
Its isnad is sahih, and it is a repetition of 5316. Here in the margin of M is the following note, "His saying, or Ibn Umm Maktum makes the call at night, is not found in the manuscript. This is how it is in the Shaykh's manuscript."