The Book of Faith
كتاب الإيمان
Chapter 27: The characteristics of the hypocrite
even if he observed fast and prayed and asserted that he was a Muslim.
Chapter 28: Clarifying the condition of faith for one who says to his muslim brother: "O Kafir (Disbeliever)."
When a man calls his brother an unbeliever, it returns (at least) to one of them.
Any person who called his brother: "O unbeliever" (has in fact done an act by which this unbelief) would return to one of them. If it were so, as he asserted (then the unbelief of man was confirmed but if it was not true), then it returned to him (to the man who labeled it on his brother Muslim).
Chapter 29: Clarifying the condition of the fath of one who knowingly denies his father
No person who claimed knowingly anyone else as his father besides (his own) committed nothing but infidelity, and he who made a claim of anything, which (in fact) did not belong to him, is not amongst us; he should make his abode in Fire, and he who labeled anyone with unbelief or called him the enemy of Allah, and he was in fact not so, it rebounded on him.
Do not detest your fathers; he who detested his father committed infidelity.
Both of my ears heard the Messenger of Allah saying this: He who claimed the fatherhood of anyone else besides his real father knowingly (committed a great sin) ;Paradise is forbidden to him. Abu Bakra asserted that he too heard it from the Messenger of Allah (may peace be upon him ).
My ears heard and my hearing preserved it that Muhammad (peace and blessings be upon him) observed: He who claimed for another one his fatherhood besides his own father knowingly that he was not his father-to him Paradise is forbidden.
Chapter 30: Clarifying the words of the prophet (saws): "Insulting A Muslim is an evil action and fighting him is disbelief (Kufr)"
Abusing a Muslim is an outrage and fighting against him is unbelief. Zubaid said: I asked Abu Wa'il: Did you hear it from Abdullah narrating if from the Messenger of Allah (may peace and blessings be upon him)? He replied: Yes. But there is mention of the talk between Zubaid and Abu Wa'il in the hadith narrated by Shu'ba.
Abu Bakr b. Abu Shaiba narrated a hadith like this from the Apostle (may peace and blessings be upon him) on the authority of Abdullah.
Chapter 31: Clarifying the meaning of the Statement of the Prophet (saws): "Do not revert to disbelief (Kuffar) after I am Gone, striking one another's necks"
Do not return to unbelief after me by striking the necks of one another.
Abdullah b. Mu'adh narrated from the Apostle (may peace and blessings be upon him) a hadith like this on the authority on Ibn Umar.
It is narrated on the authority of Abdullah b. Umar that the Apostle (may peace and blessings be upon him) observed on the occasion of the Farewell Pilgrimage Woe unto you distress unto you! Don't turn back as unbelievers after me by striking the necks of one another.
Harmala b. Yahya, Abdullah b. Wahb, Umar b. Muhammad, Ibn Umar narrated like the hadith reported by Shu'ba on the authority of Waqid.
Chapter 32: Use of the word Kufr with regard to slandering people's lineage and wailing
Two (things) are found among men which are tantamount to unbelief: slandering one's lineage and lamentation on the dead.
Chapter 33: Calling a runaway slave a kafirg
By God, this hadith was narrated from the Apostle (may peace and blessings be upon him), but I do not like that this should be narrated on my authority here in Basra.
The slave who fled from his master, responsibility with regard to him was absolved.
When the slave runs away from his master, his prayer is not accepted.
Chapter 34: Clarifying the Kufr of one who says: "We got rain because of the stars."
The Messenger of Allah (may peace and blessings be upon him) led the morning prayer at Hudaybiya. There were some marks of the rainfall during the night. At the conclusion of prayer he turned towards people and observed: Do you know what your Lord has said? They replied: Allah and His Messenger know best. Upon this he (the Holy Prophet) remarked: He (Allah) said: Some of My bondsmen entered the morning as My believers and some as unbelievers. He who said: We have had a rainfall due to the Blessing and Mercy of Allah, he is My believer and a disbeliever of stars, and who said: We have had a rainfall due to the rising of such and such (star) disbelieved Me and affirmed his faith in the stars.
Don't you know what your Lord said? He observed: I have never endowed My bondsmen with a favor, but a section amongst them disbelieved it and said: Stars, it was due to the stars.
Allah does not shower His blessings from the heaven that in the morning a group of men disbelieve it (to be a blessing from Allah). Allah sends down rain, but they (the disbelievers) say: Such and such star (is responsible for that).