Abu al-Zubayr narrates from Sayyiduna Jabir (may Allah be pleased with him) that the sun set for the Messenger of Allah (peace and blessings be upon him) while he was in Makkah, and he combined Maghrib and Isha at a place called Sarif.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 5535