وَمِنْ مُسْنَدِ عَلِيِّ بْنِ أَبِي طَالِبٍ رَضِيَ اللَّهُ عَنْهُ
5  
Musnad 'Ali Ibn Abi Talib
Musnad Ahmad 565
It was narrated that ‘Ali (رضي الله عنه) said:
When the Messenger of Allah (ﷺ) recited ruqyah for a sick person, said: “Remove the hardship and suffering. Lord of mankind, and grant healing, for You are the Healer and there is no healing except Your healing; (grant) healing which does not leave any sickness behind.`
حَدَّثَنَا أَبُو سَعِيدٍ، مَوْلَى بَنِي هَاشِمٍ حَدَّثَنَا إِسْرَائِيلُ، حَدَّثَنَا أَبُو إِسْحَاقَ، عَنِ الْحَارِثِ، عَنْ عَلِيٍّ، قَالَ كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا عَوَّذَ مَرِيضًا قَالَ أَذْهِبْ الْبَاسَ رَبَّ النَّاسِ اشْفِ أَنْتَ الشَّافِي لَا شِفَاءَ إِلَّا شِفَاؤُكَ شِفَاءً لَا يُغَادِرُ سَقَمًا‏.‏
Grade: Sahih because of corroborating evidence; this is a Da'if (weak) isnad because of the weakness of Al-Harith Al-A'war] (Darussalam)
Reference : Musnad Ahmad 565
In-book reference : Book 5, Hadith 4