"One of the immediate acts of the Prophet

on his return from Badr had been to visit the grave of his daughter Ruqayyah, and Fatimah went with him. This was the first bereavement they had suffered within their closest family circle since the death of Khadijah, and Fatimah was greatly distressed by the loss of her sister. The tears poured from her eyes as she sat beside her father at the edge of the grave, and he comforted her and sought to dry her tears with the corner of his cloak. He had previously spoken against lamentations for the dead, but this had led to a misunderstanding, and when they returned from the cemetery the voice of 'Umar was heard raised in anger against the women who were weeping for the martyrs of Badr and for Ruqayyah. "Umar, let them weep," he said. And then he added, "What cometh from the heart and from the eye, that is from God and His Mercy, but what cometh from hand and from the tongue, that is from Satan." [fn 1: I.S. VIII, 24.] By the hand he meant the beating of the breast and the lacerating of the cheeks, and by the tongue he meant the vociferous clamor in which all the women joined as a social gesture.

-Martin Lings, Muhammad: His life based on the earliest sources. pg. 167