Surah 75. Al-Qiyamah, Ayah 13

Lit., "what he has sent ahead and left behind", i.e., whatever good and bad deeds he committed or omitted (Zamakhshari).

All good and bad deeds, positive and negative, i.e., all sins of commission and omission, and all the good that a man did and all the evil that he omitted, all the influence that he radiated before him and all that he left behind him.