Sahih Muslim
The Book of Fasting (Kitab Al-Sawm)
Book Number: 006 / Hadith Number: 2420
Abu 'Atiyya reported: I and Misruq went to 'A'isha (Allah be pleased with her) and Masruq said to her: There are two persons among the Companions of Muhammad (may peace be upon him) none of whom abandons the good, but one of them hastens to observe sunset prayer and break the fast, and the other delays in observing the sunset prayer and in breaking the fast, whereupon she said: Who hastens to observe sunset prayer and break the fast? He said: It is 'Abdullah. Upon this she said: This is how the Messenger of Allah (may peace be upon him) used to do.