It is narrated from Imam Jafar ibn Muhammad Al-Sadiq عليه السلام that He said: "Whoever recites the Tasbih of Sayyida Fatimah Al-Zahra صلى الله عليه وعلى آله وسلم after the obligatory prayer before moving their legs (changing their position) will have their sins forgiven by Allah سبحانه وتعالى."