Surah Al-Qasas 28:34

وَأَخِى هَـٰرُونُ هُوَ أَفْصَحُ مِنِّى لِسَانًا فَأَرْسِلْهُ مَعِىَ رِدْءًا يُصَدِّقُنِىٓ ۖ إِنِّىٓ أَخَافُ أَن يُكَذِّبُونِ

And my brother Aaron is more fluent than me in tongue, so send him with me as support, verifying me. Indeed, I fear that they will deny me."

Translation: Saheeh International

Tafsir

And my brother Aaron is more eloquent more intelligible than me in speech. So send him with me as a helper as an aid a variant reading for rid’an ‘helper’ is ridan to confirm me read either in apocopated form yusadiqnī as a response to the request or as an indicative with damma inflection yusadiqunī as an adjectival …

Excerpt from Tafsir al-Jalalayn, commentary on 28:34, via Quran.com. The reader has the full commentary and 9 more tafsirs.