On the morning when Hazrat Umar (radhiyallahu ‘anhu) was stabbed, a youngster visited him and said to him, “O Ameer-ul-Mu’mineen! Rejoice over the glad tidings from Allah Ta‘ala! You are the Sahaabi of Rasulullah (sallallahu ‘alaihi wasallam) and you are among those who accepted Islam in the very early days, you were thereafter appointed as the khalifah and you exercised justice throughout your rule, and you will shortly pass away as a martyr!”
When he heard this, Hazrat Umar (radhiyallahu ‘anhu) remarked, “I wish that all these aspects (that you have mentioned) assist me to just break even, so that there is nothing against me, and there is nothing in my favour (i.e. I would be happy if all my good deeds are merely sufficient to counter-balance my weaknesses and I am left with nothing in my favour and nothing against me)”.
When this youngster turned to leave, Hazrat Umar (radhiyallahu ‘anhu) noticed that his lower garment was below his ankles and touching the ground. Hazrat Umar (radhiyallahu ‘anhu) immediately ordered for him to be brought back, after which he told him, “O nephew! Raise your lower garment (and wear it above your ankles in accordance to the sunnah), for this is cleaner for your clothing and a means of adopting fear of Allah Ta‘ala” (Bukhaari #3700)