Sahih Muslim, 318

It is narrated on the authority of Abdullah b. Mas'ud that some people said to the Messenger of Allah (ﷺ):Messenger of Allah, would we be held responsible for our deeds committed in the state of ignorance (before embracing Islam)? Upon his he (the Holy Prophet) remarked: He who amongst you performed good deeds in Islam, He would not be held responsible for them (misdeeds which he committed in ignorance) and he who committed evil (even after embracing Islam) would be held responsible or his misdeeds that he committed in the state of ignorance as well as in that of Islam

Rapporté par Abdullah b. Mas’ud رضي الله عنه : Des gens ont demandé au Messager d’Allah ﷺ : « Serons-nous tenus responsables de nos actes commis dans l’ignorance (avant l’islam) ? » Le Prophète ﷺ a répondu : « Celui d’entre vous qui fait de bonnes actions en islam ne sera pas tenu responsable de ce qu’il a fait dans l’ignorance. Mais celui qui fait le mal (après avoir embrassé l’islam) sera tenu responsable de ses mauvaises actions passées et présentes. »