Narrated Ali (RA):
Fatima (RA) went to the Prophet (ﷺ) complaining about her sufferings and hurts from the stone handmill on her hands. She heard that the Prophet (ﷺ) had received a few slave girls. But she did not find him, so she mentioned her problem to Aishah (RA). When the Prophet (ﷺ) came, Aishah (RA) informed him about that.
Ali (RA) added: So the Prophet (ﷺ) came to us when we had gone to bed. We wanted to get up, but he said, “Stay where you are.” Then he came and sat between me and her, and I felt the coldnessof his feet on my abdomen.
He(ﷺ) said, “Shall I direct you to something better than what you have requested for? When you go to bed, say ‘Subhan Allah‘ thirty-three times, ‘Alhumdolillah‘ thirty-three times, and ‘Allahu Akbar‘ thirty-four times, for that is better for you than a servant.”