Abu al-Aswad al-Du'ali أبو الأسود الديلي/الدؤلي · The Book on Jana''iz (Funerals)

"The Prophet entered a grave during the night, so a torch was lit for him. He took it (the deceased) in from the direction of the Qiblah, and he said: 'May Allah have mercy upon you, you were often invoking (Allah) by reciting the Qur'an.' And he said: 'Allahu Akbar four times."