"An ear for an ear, and the head is extra..."
Ibn Mas’ud was sitting on the chest of Abu Jahl, he cut off his head. It was
narrated that he then pierced a hole in Abu Jahl’s ear, tied a rope through it, and dragged his
head by this rope. It seems that Abu Jahl’s head was quite large, and Ibn Mas’ud was a frail,
weak person. So, when the Messenger of Allah (peace be upon him) saw Abu Jahl’s severed
head, he fell into prostration out of gratitude to Allah, and said: “By the One besides
Whom there is none worthy of worship, there is a Fir’awn for every ummah, and this
is the Fir’awn of this Ummah.”This is the narration in the ‘Sahihayn,’ and it is also said
that the Messenger of Allah (peace be upon him), after he saw the rope tied through the hole
in Abu Jahl’s ear, remembered the day that he had injured Ibn Mas’ud’s ear in Makkah, and
then said to Ibn Mas’ud: “An ear for an ear, and the head is extra.”
For the entire story of the killing of Abu Jahl, see ‘Fath al-Bari’ (7/342-354), and ‘Sharh Sahih Muslim’ (12/159-160).
The book from where this is taken from. Abdullah Azzam's advise for the youth.
http://www.scribd.com/doc/16054018/the-youth-abdullah-azzam
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