Visiting the sick and illness

لَا بَأْسَ، طَهُورٌ إِنْ شَاءَ اللَّهُ

Lā ba's, ṭahūrun in shā'a-llāh.

No harm, it is a purification, if Allāh wills. (to the sick person being visited)

Source : Al-Bukhārī

أَسْأَلُ اللَّهَ الْعَظِيمَ، رَبَّ الْعَرْشِ الْعَظِيمِ، أَنْ يَشْفِيَكَ

As'alu-llāha-l-ʿaẓīm, rabba-l-ʿarshi-l-ʿaẓīm, an yashfiyak.

I ask Allāh, the Immense, Lord of the Immense Throne, to cure you.

Source : At-Tirmidhī, Abū Dāwūd

اللَّهُمَّ رَبَّ النَّاسِ، أَذْهِبِ الْبَأْسَ، اشْفِ أَنْتَ الشَّافِي، لَا شِفَاءَ إِلَّا شِفَاؤُكَ، شِفَاءً لَا يُغَادِرُ سَقَمًا

Allāhumma rabba-n-nās, adhhibi-l-ba's, ishfi anta-sh-shāfī, lā shifā'a illā shifā'uk, shifā'an lā yughādiru saqamā.

O Allāh, Lord of mankind, remove the affliction, cure, for You are the Healer. There is no cure but Yours, a cure that leaves no illness.

Source : Al-Bukhārī, Muslim

بِسْمِ اللَّهِ (×3) أَعُوذُ بِاللَّهِ وَقُدْرَتِهِ مِنْ شَرِّ مَا أَجِدُ وَأُحَاذِرُ

Bismi-llāh (×3), aʿūdhu bi-llāhi wa qudratihi min sharri mā ajidu wa uḥādhir.

In the Name of Allāh (×3). I seek refuge in Allāh and in His power from the evil I feel and that I fear. (on the painful area)

Source : Muslim