Al-Husayn b. Ibrahim b. Natana narrated to us. He said: `Ali b. Ibrahim narrated to us from his father from Muhammad b. Abi `Umayr from Hisham b. Salim. He said: Al-Sadiq Ja`far b. Muhammad said:

Whoever prays a prescribed prayer, then glorifies [Allah] thirty times after it, no sin will remain on his body except that he will have shed it.