The Prophet (ﷺ) once passed by two graves, and those two persons (in the graves) were being tortured. He said, "They are being tortured not for a great thing (to avoid). One of them never saved himself from being soiled with his urine, while the other went about committing slander (to make enmity between friends). He then took a green leaf of a date-palm tree split it into two pieces and fixed one on each grave. The people said, "O Allah's Messenger (ﷺ)! Why have you done so?" He replied, "I hope that their punishment may be lessened till they (the leaf) become dry."
Sahih al-Bukhari Book 23, Hadith 114
← Previous Hadith When the time of the death of Abu Talib approached, Allah's Messenger (ﷺ) went to him and found Abu Jahl bin Hisham and `Abdullah bin Abi Umaiya bin Al-Mughira by his side. Allah's Messenger (ﷺ) said to Abu Talib, "O uncle! Say: None has the right to be worshipped but Allah, a sentence with which I shall be a witness (i.e. argue) for you before Allah. Abu Jahl and `Abdullah bin Abi Umaiya said, "O Abu Talib! Are you going to denounce the religion of `Abdul Muttalib?" Allah's Messenger (ﷺ) kept on inviting Abu Talib to say it (i.e. 'None has the right to be worshipped but Allah') while they (Abu Jahl and `Abdullah) kept on repeating their statement till Abu Talib said as his last statement that he was on the religion of `Abdul Muttalib and refused to say, 'None has the right to be worshipped but Allah.' (Then Allah's Messenger (ﷺ) said, "I will keep on asking Allah's forgiveness for you unless I am forbidden (by Allah) to do so." So Allah revealed (the verse) concerning him (i.e. It is not fitting for the Prophet (ﷺ) and those who believe that they should invoke (Allah) for forgiveness for pagans even though they be of kin, after it has become clear to them that they are companions of the fire (9.113).

Sahih al-Bukhari Book 23, Hadith 113 Next Hadith → " We were accompanying a funeral procession in Baqi-I-Gharqad. The Prophet (ﷺ) came to us and sat and we sat around him. He had a small stick in his hand then he bent his head and started scraping the ground with it. He then said, "There is none among you, and not a created soul, but has place either in Paradise or in Hell assigned for him and it is also determined for him whether he will be among the blessed or wretched." A man said, "O Allah's Messenger (ﷺ)! Should we not depend on what has been written for us and leave the deeds as whoever amongst us is blessed will do the deeds of a blessed person and whoever amongst us will be wretched, will do the deeds of a wretched person?" The Prophet said, "The good deeds are made easy for the blessed, and bad deeds are made easy for the wretched." Then he recited the Verses:-- "As for him who gives (in charity) and is Allah-fearing And believes in the Best reward from Allah. " (92.5-6)

Sahih al-Bukhari Book 23, Hadith 115