It is narrated by Hazrat Imam Jafer Sadiq(a.s.) that if one recites the following Tahlil 10 times without shifting his ankle from his place after namaz, Allah (s.w.t.) will forgive his 40000 sins and 4 crore good deeds will be written in his account. It is as if he has read the Holy Quran 12 times. The Holy Prophet (s.a.w.a.) said that "I am reciting it 100 times but for you 10 times is enough".
BISMILLAHIR RAHMANIR RAHEEM
ASH-HADO AN LAA ELAAHA ILLALLAAHO WAHDAHU LAA SHAREEKA LAHU ELAAHAN WAAHEDAN AHADAN SAMADAN LAM-YATTAKHIZ SAAHEBATAN WALAA WALADAA.