Q 2: Is it permissible
to lead people in Salah (Prayer) without mastering Tajwid (the art of properly reciting the Qur’an), although I have memorized the whole Qur’an?
If there is another person who has better knowledge of the rules of Shari‘ah (Islamic law) and is more well-versed in the Qur’an, he is more entitled to the Imamah (leadership of congregational Salah) than you. If there is no other person, you may lead them in Salah; but you have to exert your efforts in learning the rules of Salah as well as religion in general through the available means in order to benefit yourself, your family and your neighbors. The Prophet (peace be upon him) said:
“If Allah wants to do good to a person, He makes them knowledgeable in the religion.”
May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.