Taa-Haa 27

وَٱحْلُلْ عُقْدَةً مِّن لِّسَانِى ﴿٢٧﴾

Waohlul AAuqdatan min lisanee

"And make loose the knot (the defect) from my tongue, (i.e. remove the incorrectness from my speech) [That occurred as a result of a brand of fire which Musa (Moses) put in his mouth when he was an infant]. [Tafsir At-Tabari, Vol. 16, Page 159]. The Noble Quran