Du'a using Allah's Name Al-Haadi

اللَّهُمَّ يَا هَادِي اهْدِنَا لِأَحْسَنِ الْأَخْلَاقِ لَا يَهْدِي لِأَحْسَنِهَا إِلَّا أَنْتَ

Allahumma ya Haadi ihdina li ahsanil akhlaaqi la yahdi li ahsaniha illa ant

O Allah, The Guide, guide us to the best of manners, for none guides to the best of them except You.

Adapted in the plural for group supplication and addressed to "Yā Hādī" from Ṣaḥīḥ Muslim 771, which reads "ihdinī" (guide me).