Musnad Ahmad 25:1442

Yazid ibn Harun narrated to us, Sufyan—meaning Ibn Husayn—informed us, from Abu Hashim, from Sa'id ibn Jubayr, from Ibn Abbas, who said: I spent the night at the house of my maternal aunt, Maymunah bint al-Harith. The Messenger of Allah (peace and blessings of Allah be upon him) prayed the Isha prayer, then returned to her, and it was her night. He prayed two rak'ahs, then turned away and said: "Has the boy slept?" while I was listening to him. He said: Then I heard him say in his place of prayer: "O Allah, place light in my heart, and light in my hearing, and light in my sight, and light in my tongue, and make light great for me."