Al-Mu'jam al-Awsat 1279 — Salih bin Ziyad al-Naji

Salih bin Ziyad al-Naji (may Allah have mercy on him) relates: I was with Muhammad bin Sulayman bin Ali bin Abdullah bin Abbas (may Allah have mercy on him), and another man was also sitting with him, when a little son of his brother Ja'far was brought to him. He sat him in his lap and began passing his hand over his head from front to back in this way, turning his hair over, at which the child became somewhat irritated. So the man sitting with him said to him: "May Allah set the Amir right, the child has become annoyed." He said: "Be quiet. Abu Ayyub (may Allah have mercy on him) narrated to me from his father, from his grandfather, that Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said that the Messenger of Allah (peace and blessings be upon him) said: 'When a boy is an orphan, pass your hand over his head like this, towards the front (from the back); and if he has a (living) father, pass your hand over his head like this, from the front towards the back.'"
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Muhammad bin Sulayman (may Allah have mercy on him) except Salih (may Allah have mercy on him), and Muhammad bin Sudran (may Allah have mercy on him) is alone in narrating it."