Is the ignorant person excused for disbelief (kufr) and polytheism (shirk), and what are the evidences for that from Islamic law (Sharia)?

The ignorant person who commits acts of disbelief (kufr) and polytheism (shirk) is divided into two categories:

1. Non-Muslim: In this world, they are treated as disbelievers. However, regarding the Hereafter, if they were ignorant of the Islamic call or if it reached them in a distorted manner, their fate is likely to be tested on the Day of Resurrection.

2. Affiliated with Islam: If they commit an act of disbelief out of ignorance, they do not become disbelievers thereby, nor do they exit Islam until the evidence (hujjah) is established against them and it is clarified to them. The excuse of ignorance encompasses matters of creed, monotheism, polytheism, and jurisprudential rulings. The Sharia texts indicate excusing the one who errs and that Allah's proof (hujjah) is not established except after knowledge, in addition to stories from the Quran and Sunnah that prove the excusal of those who fell into polytheism or disbelief due to their ignorance.

In conclusion, the ignorant person regarding the truth is excused. If they are a Muslim affiliated with Islam, they remain among them. Otherwise, their ruling in the Hereafter is that of the People of the Fatrah (those who lived during a period without a prophet), and their matter is with Allah.