Sahih Al Bukhari Hadith Number 1285

Narrated Anas bin Malik: We were (in the funeral procession) of one of the daughters of the Prophet (peace be upon him) and he was sitting by the side of the grave. I saw his eyes shedding tears. He said, “Is there anyone among you who did not have sexual relations with his wife last night?” Abu Talha replied in the affirmative. And so the Prophet told him to get down in the grave. And so he got down in her grave.

23  Funerals (Al-Janaa’iz)
Hadith number 1285
Volume no 2
Chapter: 32 (The statement of the Prophet peace be upon him : “The deceased is punished because of the weeping (with wailing) of some of his relatives, if wailing was the custom of that dead person.”)