"I heard Najiyah bin Ka'b narrating from 'Ali that he came to the Prophet (ﷺ) and said: 'Abu Talib has died.' He said: 'Go and bury him.' He said: 'He died as an idolator.' He said: 'Go and bury him.' ('Ali said:) 'When I had buried him I went back to him and he said to me: 'Perform Ghusl.'"
Sunan an-Nasa'i Book 1, Hadith 191
← Previous Hadith "Thumamah bin Uthal Al-Hanafi went to fetch some water that was near the Masjid and performed Ghusl, then he entered the Masjid and said: 'Ashhadu an la ila ha ill-Allah was ashhadu anna Muhammadan 'abduhu wa rasuluh (I bear witness that there is none worthy of worship except Allah and I bear witness that Muhammad is His slave and Messenger), O Muhammad, by Allah! There was no face on the face of the Earth that was more hateful to me than your face, not now your face has become the most beloved of all faces to me. You cavalry captured me and I want to perform 'Umrah. What do you think? The Prophet (ﷺ) gave him glad tidings and told him to perform 'Umarah."

Sunan an-Nasa'i Book 1, Hadith 190 Next Hadith → "When (a man) sits between the four parts of his wife's body and exerts himself, then Ghusl becomes obligatory."

Sunan an-Nasa'i Book 1, Hadith 192