Zayd bin Thabit reported,

We were with the Messenger of Allah ﷺ compiling the Quran from scraps of parchment when the Messenger of Allah ﷺ said, "Blessed is Sham."We asked, "Why is that, Messenger of Allah?"He replied, "Because the angels of the Most Merciful spread their wings over it."

Azami 588

Sahih

عن زيد بن ثابت قال

كنا عند رسول الله ﷺ نؤلف القرآن من الرقاع، فقال رسول الله ﷺ: طوبى للشام. فقلنا: لأي ذلك يا رسول الله؟ قال: لأن ملائكة الرحمن باسطة أجنحتها عليها.

الأعظمي 588صحيح
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Faith
Chapter
Belief in the angels
Section
Angels spread their wings over Sham
Numbering
Jami al-Kamil 588 (2nd edition)
Azami 588