سنن ابن ماجه

It was narrated that 'Abbas bin 'Abdul-Muttalib said: "The Messenger of Allah (ﷺ) said: 'My Ummah will continue to adhere to the Fitrah so long as they do not delay the Maghrib until the stars have come out." (Hasan)Abu 'Abdullah bin Majah said: I heard Muhammed bin Yahya saying: 'The people in Baghdad were confused in narrating this Hadith. Abu Bakr Al-A'yan and I went to 'Awwam bin 'Abbad bin 'Awwam and he brought out to us the book of his father, and this Hadith was in it.'"