قال : وكتب أمير المؤمنين ) عليه السلام ) فيما كتب إلى سهل بن حنيف :
Part of the letter of the Commander of the Believers (as) to Sahl bin Hunaif was:
I swear to Allah that when I tore out the door of Khaibar and then threw it at a distance of forty ells, my body did not feel the weight and the strength I used to perfrom this act was not a result of my dietary consumption. I was suppored by the supreme power and by (My) soul, which shines from the light of his lord.
I am to Ahmad [the Prophet (saww)] like light is to light.
I swear to Allah that even if all the arabs unite to fight me, I will not run away, even if I have the chance to do so.
He who does not care when his death meets him has linked his death with paradise.
[Source: Bisharat Al-Mustafa Le Shiyate Murtaza, Chapter. 5 Hadees. 25]