Sayyiduna ‘Abdullah Bin ‘Isa رَضِىَ اللهُ تَعَالٰی عَـنْهُ that there were two dark lines on the blessed face of Sayyiduna ‘Umar Farooq-e-A’zam رَضِىَ اللهُ تَعَالٰی عَـنْهُ caused by tears due to excessive weeping.
(Az-Zuhd lil Imam Ahmad Bin Hanbal, pp. 149)
Ronay waali ankhayn maango rona sab ka kaam nahin
Zikr-e-mahabbat ‘aam hay laykin sawz-e-mahabbat ‘aam nahin
صَلُّوۡا عَلَى الۡحَبِيۡب صَلَّى اللّٰهُ تَعَالٰى عَلٰى مُحَمَّد
Sayyiduna Hasan Basri عَـلَيْهِ رَحْـمَةُ الـلّٰـهِ الۡـقَوِی has mentioned: Sayyiduna ‘Umar Bin Khattab رَضِىَ اللهُ تَعَالٰی عَـنْهُ would sometimes bring his hands near the fire and question himself, ‘O son of Khattab! Do you have courage to bear this fire?’
(Manaqib ‘Umar Bin Al-Khattab li Ibn Al-Jawzi, pp. 154)
Ameer-ul-Mu`mineen, Sayyiduna ‘Ali کَـرَّمَ الـلّٰـهُ تَـعَـالٰی وَجۡـھَـهُ الۡـکَـرِیۡم has mentioned: Once I saw Ameer-ul-Mu`mineen, Sayyiduna ‘Umar Bin Khattab رَضِىَ اللهُ تَعَالٰی عَـنْهُ rushing somewhere riding on a camel, I said, ‘Ameer-ul-Mu`mineen! Where are you heading to?’ He رَضِىَ اللهُ تَعَالٰی عَـنْهُ replied, ‘A camel donated in Sadaqah (charity) has fled away and I am going to look for it; even if a lamb would die on the bank of Euphrates River, ‘Umar will be questioned about it on the Day of Resurrection.’ (Ibid, pp. 153)