Sahih Al Bukhari Hadith Number 1252

Narrated Anas bin Malik: The Prophet (peace be upon him) passed by a woman who was sitting and weeping beside a grave and said to her, “Fear Allah and be patient.”

23  Funerals (Al-Janaa’iz)
Hadith number 1252
Volume no 2
Chapter: 7 (The saying of a man to a woman at the grave, “Be patient”)