Sunan al-Nasa'i — The Book of Fasting

“I said to ‘Aishah: ‘Among us there are two of the Companions of the Prophet, one of whom hastens Iftar and delays Sahur, and the other delays Iftar and hastens Sahur.’ She said: ‘Which of them is the one who hastens Ifar and delays Sahur?’ I said: “Abdullah bin Masud.’ She said: ‘That is what the Messenger of Allah used to do.”‘

The Messenger of Allah (ﷺ) as saying: The difference between our fasting and that of the people of the Book is eating shortly before dawn.

I said: Messenger of Allah, I hunt with my trained dog, and with my untrained dog? He said: ‘What you hunt with your trained dog, mention Allah’s names (on it) and eat; and what you hunt with your untrained dog, and you find in a position that you slaughter it, then eat.