The Prophet ﷺ said: It will turn out that you will be armed troops, one is Syria, one in the Yemen and one in Iraq. Ibn Hawalah said: Choose for me, Messenger of Allah, if I reach that time. He replied: Go to Syria, for it is Allah's chosen land, to which his best servants will be gathered, but if you are unwilling, go to your Yemen, and draw water from your tanks, for Allah has on my account taken special charge of Syria and its people. (Using translation from Abū Dāʾūd 2483)
أَنَّهُ قَالَ قَالَ رَسُولُ اللهِ ﷺ سَيَصِيرُ الْأَمْرُإِلَى أَنْ تَكُونُوا جُنُودًا مُجَنَّدَةً جُنْدٌ بِالشَّامِ وَجُنْدٌ بِالْيَمَنِ وَجُنْدٌ بِالْعِرَاقِ قَالَ ابْنُ حَوَالَةَ خِرْ لِي يَا رَسُولَ اللهِ إِنْ أَدْرَكْتُ ذَاكَ قَالَ عَلَيْكَ بِالشَّامِ فَإِنَّهُ خِيرَةُ اللهِ مِنْ أَرْضِهِ يَجْتَبِي إِلَيْهِ خِيرَتَهُ مِنْ عِبَادِهِ فَإِنْ أَبَيْتُمْ فَعَلَيْكُمْ بِيَمَنِكُمْ وَاسْقُوا مِنْ غُدُرِكُمْ فَإِنَّ اللهَ ﷻ قَدْ تَوَكَّلَ لِي بِالشَّامِ وَأَهْلِهِ