4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad and Muhammad ibn al-Husayn from Muhammad ibn ’Isma‘il ibn Bazi‘ from Mansur ibn Yunus from abu Bakr al-Hadramiy who has said the following
“Abu Ja‘far, and abu ‘Abd Allah, ‘Alayhim al-Salam, would say, ‘Only four things discontinue Salah (prayer): defecation, urination, gas and sound.’”