Sayyiduna Abdullah bin Abi Awfa (may Allah be pleased with him) narrates: "The Messenger of Allah (peace and blessings be upon him) combined Hajj and Umrah only because he (peace and blessings be upon him) knew that he (peace and blessings be upon him) would not be setting out (for Hajj again) after that."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Isma'il bin Abi Khalid except Yazid bin Ata."
Hadith Referenceالمعجم الأوسط / باب السين / 3608
Hadith Takhrij«أخرجه الحاكم فى «المستدرك» برقم: 1743، والدارقطني فى «سننه» برقم: 2735، والبزار فى «مسنده» برقم: 3344»