2. Abu Ali al-Ash‘ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Ali ibn Ishaq from Sahl ibn al-Yasa’ who has said the following: “Abu ‘Abd Allah , has said that the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, has said, ‘One who sleeps on a flat roof without a safety fencing walls around it and if something happened to him, he must not blame anyone except his own soul.”’

3. It is narrated from the narrator of the previous Hadith from al-Hajj al from ‘Abd Allah ibn Bukayr from Muhammad ibn Muslim who has said the following: “Abu ‘Abd Allah , disliked a man’s sleeping overnight on a flat roof without safety fencing wall around it. It is the same for both men women.’”

4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from ibn Faddal from ibn Bukayr from Muhammad ibn Muslim who has said the following: “Abu ‘Abd Allah , disliked a man’s sleeping alone overnight on a flat roof without safety fencing wall around it; and that it is the same for both men and women.’”

5. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Muhammad ibn abu Hamzah and others who has said the following: “About the case of a flat roof without fencing wall around it abu ‘Abd Allah , has said, ‘If the height of the fencing wall around a flat roof is two yards (Zira’ arm-length) it is sufficient.’”

6. It is narrated from the narrator of the previous Hadith from his father from Safwan ibn Yahya from ‘Is ibn al-Qasim who has said the following: “I once asked abu ‘Abd Allah , about sleeping overnight on a flat roof without fencing wall around it. He (the Imam) said, ‘The Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, prohibited it.’ I then asked if three yards (Zira’ arm-length) is sufficient for the height of such fencing wall. He (the Imam) said, ‘No, it is four.’ I then asked, ‘How much is the length of the wall?’ He (the Imam) said, ‘The shortest is one yard (Zira’ arm-length) and one Shibr. (the distance from the tip of the thump to the tip of the little finger with the thump and little finger open and stretched out).”’