Umar Al Khattab RA wept for love of Rasulullah SAW.
One night, 'Umar RA was on his security patrol when he saw a light and heard a sound coming from a house. He peeped in to find an old lady spinning wool and singing a few poems with the following meaning:
"May Allah accept the prayers of the pious and the chosen ones who are seeking blessings for Muhammad SAW."
"O, Allah's Nabi! You worshipped each night and you wept before each day."
"I wish to know if I could be together with my beloved (Nabi SAW)."
"For death comes in different ways and I do not know how I shall die."
'Umar RA on hearing these poems sat down weeping in love and memory of Nabi SAW.