Aqil bin Khalid bin 'Aqil عقيل بن خالد بن عقيل الأيلي · Chapters on Virtues

"We were with the Messenger of Allah (ﷺ) collecting the Qur'an on pieces of cloth, so the Messenger of Allah (ﷺ) said: 'Tuba is for Ash-Sham.' So we said: 'Why is that O Messenger of Allah?' He said: 'Because the angels of Ar-Rahman spread their wings over it.'"