Nothing a believer is tried with is wasted
مَا يُصِيبُ الْمُسْلِمَ مِنْ نَصَبٍ وَلَا وَصَبٍ وَلَا هَمٍّ وَلَا حُزْنٍ وَلَا أَذًى وَلَا غَمٍّ، حَتَّى الشَّوْكَةِ يُشَاكُهَا، إِلَّا كَفَّرَ اللَّهُ بِهَا مِنْ خَطَايَاهُ
Ma yusibu-l-muslima min nasabin wa la wasabin wa la hammin wa la huznin wa la adhan wa la ghamm, hatta-sh-shawkati yushakuha, illa kaffara-llahu biha min khatayah.
"No fatigue, illness, worry, grief, harm or distress afflicts a Muslim — even to the pricking of a thorn — without Allah expiating some of his sins by it."
Narrated by Abu Hurayrah. Sahih al-Bukhari 5641, Sahih Muslim 2573
A short reflection
Every flat tyre, every long night, every stress headache — accounted. Nothing is wasted by the One who sees.