It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that he stayed in Madinah with the Messenger of Allah (peace and blessings be upon him) and he (the Prophet) offered eight rak‘ahs together and seven rak‘ahs together. The narrator says: I said to Abu Sha‘tha: "I think the Prophet delayed Zuhr and offered ‘Asr early, and likewise delayed Maghrib and offered ‘Isha early?" Abu Sha‘tha said: "I also think the same."
Hadith Referenceالسنن المأثورة / ما جاء في الجمع بين الصلاتين في المطر / 23
Hadith Takhrijصحيح بخاری، التهجد باب من لم يتطوع بعد المكتوبة، رقم: 1174، صحيح مسلم، المساجد ومواضع الصلاة، باب الجمع بين الصلاتين في الحضر، رقم: 705