In the early years of the marriage of Ali and Fatimah, Ali earned very little money and was unable to afford a servant for Fatimah. Fatimah’s hands were blistered from constant grinding; her neck had become sore from carrying water; her clothes had become dirty from sweeping the floor. One day Ali was aware that Muhammad had some servants, and advised Fatimah to ask him for one of his servants. Fatimah went, but she was unable to ask. Finally, Ali went with Fatimah to Muhammad's house. He did not accept their request, saying “there are many orphans (starved), I must sell these servants to feed them”. Then Muhammad said “I will give you one thing better than helping of servant”. He taught them a special manner of dhikr which is known as the "tasbih of Fatimah’’.
“Narrated by Abu Huraira: Some poor people came to the Prophet and said, "The wealthy people will get higher grades and will have permanent enjoyment, and they pray like us and fast as we do. They have more money by which they perform the Hajj and 'Umra, fight and struggle in Allah's Cause and give in charity." The Prophet said, "Shall I not tell you a thing upon which if you acted you would catch up with those who have surpassed you? Nobody would overtake you, and you would be better than the people amongst whom you live except those who would do the same. Say "Sub-han-al-lah", "Alhamdu-lillah" and "Allahu Akbar" thirty three times each after every (compulsory) prayer." We differed, and some of us said that we should say "Subhan-al-lah" thirty three times and "Alhamdu lillah" thirty three times and "Allahu Akbar" thirty four times. I went to the Prophet, who said: "Say, "Subhan-al-lah" and "Alhamdu lillah" and "Allahu Akbar" all together for thirty three times." (Book #12, Hadith #804)”