Aslam Abu Imran (may Allah have mercy on him) said: Sayyiduna Uqbah bin Amir (may Allah be pleased with him) led us in the Maghrib prayer and delayed it. We were at Constantinople at the time, and Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) was with us. Sayyiduna Abu Ayyub (may Allah be pleased with him) said to him: "Why do you delay this prayer when you are a Companion of the Messenger of Allah (peace and blessings be upon him)? Whoever did not have his companionship will see you and think that this is its time." We said: "O Abu Ayyub! How did you use to pray it?" He said: "We used to pray it when the sun had set, hastening before (the appearance of) the stars." (Then he asked:) "O Uqbah! Is that so?" He said: "Yes."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14934