As'salaamu Alaykunnaa wa Rahmatullaahi wa Barakaatuhu.
A sister who is very dear to me and whom I am so grateful to Allaah subhana wa ta'alla for allowing our paths to cross,shared this with me. Alhamdulilaah nothing like having those who are truly a benefit in your life. Maashaa Allaah what a beneficial reminder. It brought tears to my eyes, subhanallaah. Now it is upon me to share, so that inshaa Allaah ta'alla it will be a benefit to you all as well.
وَأَيُّوبَ إِذۡ نَادَىٰ رَبَّهُ ۥۤ أَنِّى مَسَّنِىَ ٱلضُّرُّ وَأَنتَ أَرۡحَمُ ٱلرَّٲحِمِينَ
Which means, "And remember Ayyub (alayhi salaam) when he cried to his Lord. "Verily distress has seized me, and you are the most merciful of all those who show mercy." (Al Anbiya 21:83).
Ayyub, (alayhi salaam) combined many elements in his supplication, he inferred the reality of monotheism, expressing is need to Allah, showing love for him, and longing for him, acknowledging the attribute of his mercy, and that he is the most merciful among those who show mercy. And by being humble in front of Allah because of his attributes and by showing his need for him. Whenever someone is in trouble, and finds this feeling in himself, his distress will be REMOVED!
Listen here: http://www.quran4u.com/Tafsir%20Ibn%20Kathir/021%20Anbia.htm
(Al Fawa'id Ibn Al Qayyim page 331).