مَا يُصِيبُ الْمُسْلِمَ مِنْ نَصَبٍ وَلَا وَصَبٍ وَلَا هَمٍّ وَلَا حَزَنٍ وَلَا أَذًى وَلَا غَمٍّ حَتَّى الشَّوْكَةِ يُشَاكُهَا إِلَّا كَفَّرَ اللَّهُ بِهَا مِنْ خَطَايَاهُ
Ma yusibu al-Muslima min nasabin wa la wasabin wa la hammin wa la hazanin wa la adhan wa la ghammin hatta ash-shawkati yushakuha illa kaffarAllahu biha min khatayah
No fatigue, illness, anxiety, sadness, harm, or distress befalls a Muslim — even the prick of a thorn — except that Allah expiates some of his sins because of it.
Not a du'a but a promise — and one of the most comforting hadiths for the sick. Six types of suffering are listed, from serious illness down to a tiny thorn prick. Nothing is wasted. Every ache, every worry, every moment of discomfort is converting sins into expiation. The math is always in your favor: temporary pain for permanent forgiveness. The believer who is sick and patient is winning on two fronts.
Related Du'as
لَا بَأْسَ طَهُورٌ إِنْ شَاءَ اللَّهُ
No worry, it is a purification, if Allah wills.
Sahihاللَّهُمَّ اشْفِنِي شِفَاءَكَ وَدَاوِنِي دَوَاءَكَ وَعَافِنِي مِنْ بَلَائِكَ
O Allah, heal me with Your healing, treat me with Your cure, and grant me well-being from Your trial.
Hasanاللَّهُمَّ اشْفِهِ شِفَاءً لَا يُغَادِرُ سَقَمًا
O Allah, heal them with a healing that leaves no illness behind.
Sahihاللَّهُمَّ رَبَّ النَّاسِ أَذْهِبِ الْبَأْسَ اشْفِهِ وَأَنْتَ الشَّافِي لَا شِفَاءَ إِلَّا شِفَاؤُكَ شِفَاءً لَا يُغَادِرُ سَقَمًا
O Allah, Lord of the people, remove the suffering. Heal — for You are the Healer. There is no cure except Your cure — a cure that leaves no illness behind.
Sahih