Mulla Ali Qari said: In al-Nihayah, it is mentioned that al aqib is he who succeeds those before him in goodness. It is said that the "al aqib is he after whom there is no Prophet" is tafsir of al-Zuhri. - Jam al-wasail fi sharh al-shamail

Jam al-wasail fi sharh al-shamail vol 2 cover - Mulla Ali Qari
Al aqib explanation by Mulla Ali Qari - Jam al-wasail vol 2