It is true whether righteous or disobedient, believer or disbeliever, both share the common human quality of acquired courage, as well as the innate ability to deal with dreadful situations and lessen their oppressive effects on the self. But the believer, because of his strong belief, patience and reliance and trust in Allāh, and his desire to be rewarded by Allāh, excels in having qualities that make him more courageous, and soothe more effectively the pangs of terror and the pains of calamity on him.
Allāh, the Most High, said:
"If you are suffering hardships, they too are suffering similar hardships: but you hope from Allāh that for which they hope not." [Al-Nisā (4:104]
Book: 8 Steps To Happiness
Awakening The Inner Self in Pursuit of Personal Change
By Shaykh Abū 'Abdu-r-Rahmān Nāsir as-Sa'dī
Translated from the original arabic
Dār as-Sunnah Publishers P. 22