Musannaf Ibn Abi Shayba 3:457

Abu Bakr narrated to us, he said: Ibn ‘Uyaynah narrated to us, from Razin, the freed slave of the family of ‘Abbas, who said: ‘Ali ibn ‘Abd Allah ibn ‘Abbas sent to me, saying: "Send to me a slab from Marwah, so that I may prostrate upon it."