Jabir reported that a slave of Hatib came to Allah's Messenger (ﷺ) complaining against Hatib and said: Hatib will definitely go to Hell. (But) Allah's Messenger (ﷺ) said: You tell a lie; he would not get into that for he had taken part in Badr and in (the expedition of) Hudaibiya.
Hadith Referenceصحيح مسلم / كتاب فضائل الصحابة / 2495
Hadith Commentary:Benefits and Issues: From the incident of Hatib radi Allahu anhu, it is understood that the one who commits a major sin (kabirah) is not a disbeliever (kafir), because spying against the Muslims is a major sin. That is why Umar radi Allahu anhu sought permission to execute him. However, this mistake occurred from Hatib radi Allahu anhu unintentionally, so the Prophet sallallahu alayhi wa sallam did not grant permission for execution and accepted Hatib’s excuse. From this, it is understood that the accused should be given an opportunity to speak, and if his excuse is acceptable, he should be pardoned. And if a person comments on another based on apparent circumstances, he will not be considered a criminal. Therefore, the Prophet sallallahu alayhi wa sallam did not rebuke or reprimand Umar radi Allahu anhu or Hatib’s slave, even though he did not accept their statements.
Source: Tuhfat al-Muslim: Commentary on Sahih Muslim, Page: 6403
´Narrated Abu Az-Zubair:` from Jabir, that a slave of Hatib [bin Abi Balt'ah] came to the Messenger of Allah (ﷺ) complaining about Hatib. So he said: 'O Messenger of Allah (ﷺ)! Hatib is going to enter the Fire!' So the Messenger of Allah (ﷺ) said: 'You have lied! No one who participated in (the battle of) Badr and (the treaty of) Al-Hudaybiyah shall enter it.'"
Shaykh Dr. Abdur Rahman Freywai
Explanation: 1: And Allah has announced the general forgiveness of the participants of Badr.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 3864