Why does jefferson not discuss slavery in the declaration?

He believed this subject in genral was wrong

In his Notes on the State of Virginia, published in 1785, Jefferson expressed the beliefs that slavery corrupted both masters and slaves alike, supported colonization of freed slaves, promoted the idea that African-Americans were inferior in intelligence, and that emancipating large numbers of slaves.

muhammad (pbuh) was the messenger of allah (swt) his mission was to praise the name of his lord and the words of his lord thats where the qur'an comes in