Ibrahim bin Sa'd bin Ibrahim إبراهيم بن سعد بن إبراهيم · The Book on Jana''iz (Funerals)

"A man died among the Ansar named Qarazah bin Ka'b, and he was being wailed over. So Al-Mughirah bin Shu'bah came and ascended the Minbar. He uttered thanks and praise to Allah and said: "As for the gravity of wailing in Islam, indeed I heard the Messenger of Allah saying: 'The one who is wailed over is punished as long as he is being wailed over.'"

"The Messenger of Allah said, 'Allahu Akbar' over the deceased, so he raised his hands with the first Takbir, and he placed his right (hand) over his left."