Jami` at-Tirmidhi Book 10, Hadith 71
"The Prophet prayed over a woman, so he stood at her middle."
"I prayed for the funeral of a man with Anas bin Malik, so he stood parallel to his head. Then they came with the body of a woman from the Quraish. They said: 'O Abu Hamzah perform the prayer for her.' So he stood parallel to her waist. Al-Ala bin Ziyad said to him: 'Is this how you saw the Messenger of Allah standing in the place for the funeral as you did for her, and for a place that you stood for the man?' He said: 'Yes.' When he was finished he said: 'Remember (this).'"
Jabir bin Abdullah informed him that the Prophet had put two men together in one cloth from those who were killed at (the battle of) Uhud, then he said: "Which of them memorized the more of the Qur'an?" When one of them was indicated to him, he put him in the Lahd (first) and said: "I am a witness for those people on the Day of Judgment." And he ordered that they be buried in their blood, and that they not be prayed over, nor washed.