Hisnul Muslim 148

When visiting the sick

أَسْأَلُ اللَّهَ الْعَظِيمَ، رَبَّ الْعَرْشِ الْعَظِيمِ أَنْ يَشْفِيَكَ

'As'alullaahal-'Adheema Rabbal-'Arshil-'Adheemi 'an yashfiyaka.

I ask Almighty Allah, Lord of the Magnificent Throne, to make you well. (Seven times)