Sayyiduna al-Irbad bin Sariyah (may Allah be pleased with him) reports about the Prophet (peace and blessings be upon him) that one day he stood among the people and he (peace and blessings be upon him) said: "O people! Soon a time will come when you will be divided into various armies: an army in Syria (al-Sham), an army in Iraq and an army in Yemen." Sayyiduna Ibn Hawalah (may Allah be pleased with him) said: "O Messenger of Allah! If I reach that time, choose (one of them) for me (that is, recommend it)." So the Prophet (peace and blessings be upon him) said: "I choose Syria for you, for it is the land of the best of the Muslims and the chosen one of Allah Almighty among His lands; Allah Almighty will draw to it the elect of His creation. Whoever refuses should go to his Yemen and drink from its water-pools. Indeed, Allah Almighty has given me a guarantee concerning Syria and its people."
Al-Tabarani recorded it, and its narrators are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 16648