Sahih Muslim Book 4, Hadith Number 2003.

Chapter : Closing the (eyes) of the dead and supplication for him on visiting him.

Umm Salama reported: The Messenger of Allah (may peace be upon came to Abu Salama (as he died). His eyes were fixedly open. He closed them, and then said: When the soul is taken away the sight follows it. Some of the people of his family wept and wailed. So he said: Do not supplicate for yourselves anything but good, for angels say “Amen” to what you say. He then said: O Allah, forgive Abu Salama, raise his degree among those who are rightly guided, grant him a successor in his descendants who remain. Forgive us and him, O Lord of the Universe, and make his grave spacious, and grant him light in it.