O Allah, You have perfected my creation, so perfect my character. — Looking in Mirror
اللَّهُمَّ أَنْتَ حَسَّنْتَ خَلْقِي فَحَسِّنْ خُلُقِي
Transliteration: Allaahumma anta hassanta khalqee fahassin khuluqee
Translation: O Allah, You have perfected my creation, so perfect my character.
Reference: Ahmad, Ibn Hibban