The people of Dhikr (memory and knowledge) that Allah has commanded the creatures to ask for their questions are the Imams عليه السلام

5. Ahmad ibn Muhammad has narrated from al-Husayn ibn Sa‘id from Hammad from Rib‘iy from Fudayl form abu ’Abdallah عليه السلام who has said the following about the words of Allah, the Most Holy, the Most High. “It is a Dhikr for you and for your people and you all will be asked questions.’ (43:44) The Imams عليه السلامsaid, “The Holy Quran is the ’Dhikr’ and we are the one who will be asked questions.”