Laughing during Salah

Q: What is the ruling on laughing during Salah? What if a person knows that it nullifies prayer and what if he does not?

A: It is not permissible to laugh during prayer whether a person knows that or not. According to the Ijma` (consensus), laughing nullifies Salah.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.