حَدَّثَنَا سُلَيْمَانُ بْنُ دَاوُدَ الْمَهْرِيُّ، حَدَّثَنَا ابْنُ وَهْبٍ، أَخْبَرَنِي جَابِرُ بْنُ إِسْمَاعِيلَ، عَنْ عُقَيْلٍ، بِهَذَا الْحَدِيثِ بِإِسْنَادِهِ قَالَ وَيُؤَخِّرُ الْمَغْرِبَ حَتَّى يَجْمَعَ بَيْنَهَا وَبَيْنَ الْعِشَاءِ حِينَ يَغِيبُ الشَّفَقُ ‏.‏

The above mentioned tradition has also been reported by 'Uqail through a different chain of narrators. He said: He would delay the evening prayer till he combined the evening and the night prayers when the twilight disappeared. Translation Not Available

Book reference: Sunan Abi Dawud Book 4 Hadith 1219
Web reference: Sunan Abi Dawud Book 4 Hadith 1215