So Abu Jahl recruited one person from every family.
A major factor that
contributes to gharar is inadequate information(Jahl) which increases uncertainty.
He entered the Kaaba, where Abu Jahl was sitting with the elders,
Tell me if he(the disbeliever, Abu Jahl) denies(the truth, i.e. this Quran), and turns away?
He entered the Kaaba, where Abu Jahl was sitting with the elders,
stood over him and"struck him a violent blow" with his bow.
Upon returning to Mecca after a hunting trip in the desert,
he heard that Abu Jahl had"attacked the Prophet
and abused and insulted him,""speaking spitefully of his religion and trying to bring him into disrepute.
A group of militants led by‘Amr ibn‘Abd Wudd(who was thought to be equal to a thousand men in fighting)
and Ikrimah ibn Abi Jahl attempted to thrust through the trench and managed to effect a crossing,
occupying a marshy area near the hillock of Sala.