Dua for the sick — I ask Allah to cure you
أَسْأَلُ اللهَ العَظيـم، رَبَّ العَـرْشِ العَظيـم،...
أَسْأَلُ اللهَ العَظيـم، رَبَّ العَـرْشِ العَظيـم، أَنْ يَشْفِـيَك (سبع مرات)
As-alul-lahal-AAatheem rabbal-AAarshil-AAatheem an yashfeek (seven times)
Translation
I ask Allah The Supreme, Lord of the magnificent throne to cure you. (seven times)
When to recite
Said seven times when visiting a sick person whose prescribed time of death has not arrived. The person will be cured.
Source / Reference
Abu Dawud 3/187, At-Tirmithi 2/210