Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:21:83 –

And ˹mention˺ Job, when he called to his Lord, "Indeed, adversity has touched me, and you are the Most Merciful of the merciful."  

And, mention, Job (Ayyūba, is substituted by ˹the following, idh nādā rabbahu …˺) when he called out to his Lord — after he had been afflicted with the loss of all of his possessions and children, the laceration of his body, his being shunned by all except his wife, for a period of thirteen, seventeen, or eighteen years, as well as ˹the affliction of enduring˺ a straitened means of livelihood — ‘Indeed (read annī because of the implicit yā’ ˹of the first person pronoun˺) harm, adversity, has befallen me, and You are the Most Merciful of the merciful’.
القرآن:٢١:٨٣ –

وَأَيُّوبَ إِذْ نَادَىٰ رَبَّهُ أَنِّي مَسَّنِيَ الضُّرُّ وَأَنْتَ أَرْحَمُ الرَّاحِمِينَ  

{و} اذكر {أيوب} ويبدل منه {إذ نادى ربه} لما ابتلي بفقد جميع ماله وولده وتمزيق جسده وهجر جميع الناس له إلا زوجته سنين ثلاثا أو سبعاً أو ثماني عشرة وضيق عيشه {أني} بفتح الهمزة بتقدير الياء {مسنيَ الضر} أي الشدة {وأنت أرحم الراحمين}.

See similar narrations below:

Collected by Aḥmad's Zuhd
ahmad-zuhd:1614 – ʿAbdullāh > Abū Maʿmar > Ibn ʿUlayyah > Rabīʿah b. Kulthūm b. Jabr

[Machine] I entered upon Al-Hasan while he was complaining about his tooth and saying, "{When he called to his Lord, 'Indeed, I am touched by hardship, and you are the most merciful of the merciful.'" (Quran 21:83).  

الزهد لأحمد:١٦١٤ – حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنَا أَبُو مَعْمَرٍ حَدَّثَنَا ابْنُ عُلَيَّةَ عَنْ رَبِيعَةَ بْنِ كُلْثُومِ بْنِ جَبْرٍ قَالَ

دَخَلْتُ عَلَى الْحَسَنِ وَهُوَ يَشْتَكِي ضِرْسَهُ وَهُوَ يَقُولُ {إِذْ نَادَى رَبَّهُ أَنِّي مَسَّنِيَ الضُّرُّ وَأَنْتَ أَرْحَمُ الرَّاحِمِينَ} [الأنبياء 83]