Matters that Invalidate or Do not Invalidate Wudu’

8. A number of our people have narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from al-Husayn ibn abu al-‘Ala’ who has said the following: “I once asked abu ’Abd Allah عليه السلام, about a man who belches and something comes out in his mouth. Is he required to take Wudu’ again?’ He (the Imam) said, ‘No, it is not necessary for him to take Wudu’”