O Allah, cure every sick Muslim. — Visiting the Sick
اللَّهُمَّ اشْفِ كُلَّ مَرِيضٍ مِنَ الْمُسْلِمِينَ
Transliteration: Allaahummashfi kulla mareedin minal-muslimeen
Translation: O Allah, cure every sick Muslim.
Reference: General supplication