[Machine] I entered upon the Messenger of Allah ﷺ while he was suffering from a severe headache. I said, "O Messenger of Allah, you are suffering from a severe headache." The Messenger of Allah ﷺ replied, "Indeed, I am suffering from a headache in both my temples." I asked, "If so, do you have two rewards?" He replied, "Yes" or "Certainly." Then he said, "There is no Muslim who is harmed by a thorn or anything above it except that Allah removes his sins as the tree sheds its leaves."  

دَخَلْتُ عَلَى رَسُولِ اللهِ ﷺ وَهُوَ يُوعَكُ قُلْتَ يَا رَسُولَ اللهِ إِنَّكَ تُوعَكُ وَعْكًا شَدِيدًا فَقَالَ رَسُولُ اللهِ ﷺ «إِنِّي أُوعَكُ وَعْكَ رَجُلَيْنِ» قُلْتُ فَإِنَّ لَكَ أَجْرَيْنِ؟ قَالَ «نَعَمْ» أَوْ «أَجَلْ» ثُمَّ قَالَ «مَا مِنْ مُسْلِمٍ يُصِيبُهُ أَذًى مِنْ شَوْكَةٍ فَمَا فَوْقَهَا إِلَّا حَطَّ اللهُ عَنْهُ خَطَايَاهُ كَمَا تَحُطُّ الشَّجَرَةُ وَرَقَهَا»  

Did you supplicate for anything or beg of Him about that? He said: Yes. I used to utter (these words): Impose punishment upon me earlier in this world, what Thou art going to impose upon me in the Hereafter. Thereupon Messenger of Allah ﷺ said: Hallowed be Allah, you have neither the power nor forbearance to take upon yourself (the burden of His Punishment). Why did you not say this: O Allah, grant us good in the world and good in the Hereafter, and save us from the torment of Fire. He (the Holy Prophet) made this supplication (for him) and he was all right. (Using translation from Muslim 2688a)   

أَنَّ رَسُولَ اللهِ ﷺ عَادَ رَجُلًا مِنَ الْمُسْلِمِينَ قَدْ صَارَ كَالْفَرْخِ فَقَالَ لَهُ رَسُولُ اللهِ ﷺ «مَا كُنْتَ تَدْعُو بِشَيْءٍ أَوْ تَسْأَلُهُ؟» قَالَ نَعَمْ كُنْتُ أَقُولُ اللهُمَّ مَا كُنْتَ مُعَاقِبِي بِهِ فِي الْآخِرَةِ فَعَجِّلْهُ لِي فِي الدُّنْيَا فَقَالَ النَّبِيُّ ﷺ «أَفَلَا قُلْتَ اللهُمَّ رَبَّنَا آتِنَا فِي الدُّنْيَا حَسَنَةً وَفِي الْآخِرَةِ حَسَنَةً وَقِنَا عَذَابَ النَّارِ» قَالَ فَدَعَا اللهَ فَشَفَاهُ اللهُ