Being most versed in Allah's Book, does it mean reciting the Qur'an the best or knowing Tajwid the best?

Q 4: The Prophet (peace be upon him) said, The one who is most versed in Allah's Book should lead the people in Salah (Prayer). Does this refer to the person who recites the Qur'an the best, knows Tajwid (reciting the Qur'an following the rules of recitation) best or memorizes the Qur'an best? (Part No. 6; Page No. 275

A: The saying of the Prophet (peace be upon him), The one who is most versed in Allah's Book should lead the people in Salah refers to the person who recites the Qur'an best, pronounces Tartil (slow recitation of the Qur'an) best, and also to the one who memorizes the Qur'an best. The person who recites the Qur'an best, pronounces Tartil best and memorizes the Qur'an best is the one who deserves to be an Imam (the one who leads people in congregational Prayer), especially if he is knowledgeable about Salah.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.