الكافي- ط الاسلامية, volume 4, page 417

3. Ali ibn Ibrahim has narrated from his father from Ahmad ibn Muhammad from Muhammad ibn ‘Isma‘il has narrated from al-Fadl ibn Shadhan from all from Ibn Abi ‘Umayr and from Safwan ibn Yahya from Mu‘awiyah ibn ‘Ammar who has said the following: “I once asked him (the Imam) (a.s.), about a man who performs obligatory Tawaf and does not know if he has done six or seven Tawaf (walking around the House). He (the Imam) said, ‘He must do it again.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

4. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Ali ibn al-Hakam from Ali ibn abu Hamzah from abu Basir who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who doubts in obligatory Tawaf. He (the Imam) said, ‘He must do it again whenever he doubts.’ I said, ‘I pray to Allah to keep my soul in service for your cause, what if one doubts in optional Tawaf? He (the Imam) said, ‘He considers it to be of the lesser amount.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

5. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from al-Husayn ibn Sa‘id from al-Nadr ibn Suwayd from Yahya al=Bajaliy from Harun ibn Kharijah from abu Basir who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who performs eight times Tawaf (walking around the House) for an obligatory Tawaf. He (the Imam) said, ‘He must perform it again until the right number is established.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

6. Ali ibn Ibrahim has narrated from his father from ‘Isma‘il ibn Marrar from Yunus from Sama‘ah ibn Mehran from abu Basir who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who performs obligatory Tawaf but does not know if he has done six or seven or eight Tawaf (walking around the House). He (the Imam) said, ‘He must repeat until he establishes the right number.’ I then said that he had performed optionally eight times but he forgot. He (the Imam) said, ‘He must complete it in the form of two Tawaf, then perform four Rak‘at Salat (prayer), but in the case of obligatory Tawaf he must repeat until seven times Tawaf (walking around the House) is established.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

7. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from Muhammad ibn ‘Isma‘il from Hanan ibn Sadir who has said the following: “I once asked abu ‘Abd Allah (a.s.), about a man who performs Tawaf and is confused if he has performed three or four times Tawaf (walking around the House). Abu ‘ Abd Allah (a.s.), said, ‘Was it optional or obligatory Tawaf?’ If it was obligatory Tawaf he had to drop what he had performed to start all over again, but if it was optional and if he was certain of performing three and had doubt about four, he could consider it three; it is permissible.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.