Hadith 6158

He reported God's messenger as saying to al-`Abbas, "When Monday morning comes come to me with your children so that I may make for you a supplication by which God may benefit you and your children." He and they came in the morning, and when he had put his cloak over them he said, "O God, grant al-`Abbas and his children such forgiveness without and within as will not leave a sin. O God, guard him in his children." Tirmidhi transmitted it, and Razin added, "And cause the Caliphate to remain among his descendants." Tirmidhi said this is a gharib tradition.