اَللَّهُمَّ اشْفِ عَبْدَكَ يَنْكَأُ لَكَ عَدُوًّا، أَوْ يَمْشِيْ لَكَ إِلٰى جَنَازَةٍ.

Allaahummashfi abdaka yankau laka aduyya, aw yamshi laka ilaa janaazah.

O Allah, cure Thy servant, who may then wreak havoc on an enemy for your sake, or walk at a funeral for your sake.

Reference: Sahih. Abu Dawud: 3107