Uthman b. Abul ‘As said he complained to God’s messenger of a pain he had in his body, and he told him to put his hand on the part of his body which was sore and say three times “In the name of God,” and seven times, “I seek refuge in God’s might and power from the evil of what I am experiencing and trying to avert.” He said he did so, and God removed his trouble. Muslim transmitted it.
Source: sunnah.com
Other translations
Arabic
وَعَنْ عُثْمَانَ بْنِ أَبِي الْعَاصِ أَنَّهُ شَكَا إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَجَعًا يَجِدُهُ فِي جَسَدِهِ فَقَالَ لَهُ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: " ضَعْ يَدَكَ عَلَى الَّذِي يَأْلَمُ مِنْ جَسَدِكَ وَقُلْ: بِسْمِ اللَّهِ ثَلَاثًا وَقُلْ سَبْعَ مَرَّاتٍ: أَعُوذُ بِعِزَّةِ اللَّهِ وَقُدْرَتِهِ مِنْ شَرِّ مَا أَجِدُ وَأُحَاذِرُ ". قَالَ: فَفَعَلْتُ فَأَذْهَبَ اللَّهُ مَا كَانَ بِي. رَوَاهُ مُسلم
sunnah.com