Anas said that the Prophet (ﷺ) appointed Ibn Umm Maktum as substitute to lead the people in prayer, and he was blind.
Sunan Abi Dawud Book 2, Hadith 205
← Previous Hadith The obligatory prayer is essential behind every Muslim, pious or impious, even if he has committed a sins.

Sunan Abi Dawud Book 2, Hadith 204 Next Hadith → Malik b. al-Huwairith came to this place of prayer of ours, and the iqamah for prayer was called. We said to him: Come forward and lead the prayer. He said to us: Put one of your own men forward to lead you in prayer. I heard the Messenger of Allah(ﷺ) say: If anyone visits people, he should not lead them in prayer, but some person of them should lead the prayer.

Sunan Abi Dawud Book 2, Hadith 206