It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: Whoever, after every prayer, says thirty-three times "Subhan Allah," thirty-three times "Alhamdulillah," and thirty-three times "Allahu Akbar," these become ninety-nine (words). Then, to complete one hundred (100), he says: "La ilaha illallahu wahdahu la sharika lahu, lahu’l-mulku wa lahu’l-hamdu wa huwa ‘ala kulli shay’in qadeer." His sins will be forgiven, even if they are as much as the foam of the sea.