Sayyidina Ali narrated: Fatimah complained to me of blisters on her hands from grinding the mill. I suggestd to her that she should go to her father and ask him for a maid-servant. He said (to her), “Shall I not guide you both to something better for both of you than a servant? When you both retire to your bed, make thirty-three, thirty-three and thirty-four times praise, glorification and extoling (of Allah by the words SubhanAllah 33 times AlhamduliLLAH 33 times and AllahuAkbar 34 times) There is a lengthier account in the hadith.
[Ahmed 740,996]