[8] Reported by At-Tahaawee and Al-Isma’eelee and Al-Baihaqee with an authentic chain of narration on Hudhaifah Ibn Al-Yamaan RAA.  And it is referenced in As-Saheehah (no. 2786) along with the narrations from the Sahaabah that comply with it, and all of them are authentic.

[9] Reported by Al-Baihaqee with an authentic chain of narration and Abu Dawood with a sound chain of narration.  Imaam Ibn Al-Qayyim said in Zaad Al-Ma’aad: “It is not reported on the Prophet (sallallaahu alayhi wasallam) that he made ‘Itikaaf while not fasting.  Rather, ‘Aa’ishah RAA said: ‘There is no ‘Itikaaf except with fasting.’  And furthermore, Allaah did not mention ‘Itikaaf except with the fast.  And the Prophet (sallallaahu alayhi wasallam) did not do it unless he was fasting.  So the correct opinion is in the evidence, which the majority of the scholars adhere to: that fasting is a condition for ‘Itikaaf.  And this is the opinion that Shaikh-ul-Islaam Abul-‘Abbaas Ibn Tamiyyah favored.”  And he adds to this that it is not legislated in the Religion that one who goes out to the masjid for prayer or other than that is supposed to make an intention for the amount of time he will spend in ‘Itikaaf.  This is what Shaikh-ul-Islaam clarified in his Ikhtiyaaraat. 

[10] Reported by Al-Bukhaaree, Muslim, Ibn Abee Shaibah, and Ahmad, and the first addition belongs to these last two (mentioned).  It is referenced in Saheeh Abee Dawood (2131-2132)

[11] Reported by Al-Baihaqee with a good chain and Ahmad (5/364) in abridged form with an authentic chain of narration.

[12] A khibaa is one type of house of the Arabs made form fur or wool, and it is not from hair.  And it is set up on two or three props.  See An-Nihaayah..

[13] Reported by Al-Bukhaaree and Muslim from the hadeeth of ‘Aa’ishah.  Her doing it is stated in the report of Al-Bukhaaree and his commanding it is stated in the report of Muslim.

[14] It is part of a hadeeth narrated by Abu Sa’eed Al-Khudree, reported by Muslim and Ibn Khuzaimah in their Saheehs.  It is referenced in Saheeh Abee Dawood (1251)

[15] Reported by Al-Bukhaaree and Muslim and also Abu Dawood, and the last part of it is form him (Abu Dawood).  And I referenced it in Saheeh Sunan Abee Dawood (2133 & 2134).

[16] Reported by Al-Bukhaaree and it is referenced in Saheeh Sunan Abee Dawood (2138).  The other narration is from Sa’eed Ibn Mansoor, as is I stated in Fath-ul-Baaree (4/281).  However, Ad-Daarimee (1/22) says that she is Zainab, and Allaah knows best.

[17] Reported by Al-Bukhaaree, Muslim and others.

[18] Reported by Ibn Abee Shaibah (3/92) and ‘Abdur-Razaaq (4/363) with an authentic chain of narration.  and what is meant by his saying: “must start it over” is that he must redo his ‘Itikaaf.