Hisn al-Muslim
Invocation for someone you have spoken ill to
قَالَ النَّبِيُّ صلى الله عليه وسلم: ((اللَّهُمَّ فَأَيُّمَا مُؤمِنٍ سَبَبتُهُ فَاجعَل ذَلِكَ لَهُ قُربَةً إِلَيكَ يَومَ القِيَامَةِ)).
Pronunciation
Allahumma fa ayyuma mu/minin sababtuhu faj'al thalika lahu qurbatan ilayka yawmal qiyamah
English meaning
O Allah, to any believer whom I have insulted, let that be cause to draw him near to You on the Day of Resurrection.