Narrated 'Aishah (RA): Allah's Messenger ( صلی اللہ علیہ وسلم ) swore that he would stay away from his wives for a period. He made something unlawful (for himself) (i.e. something not in itself unlawful). So, he made the lawful unlawful, and he made atonement for breaking an oath. [Reported by at-Tirmidhi, and its narrators are reliable (thiqah)] .

Narrated Ibn 'Umar (RA): When a period of four months elapses, the one who swears to stay away from his wife must be made to return to her or divorce her, and the divorce is not valid till the husband himself pronounces it. [al-Bukhari reported it] .

Narrated Sulaiman bin Yasar (RA): I met thirteen or more of the Companions of Allah's Messenger ( صلی اللہ علیہ وسلم ), all of them made the one who swears to stay away from his wife, return to her or divorce her (at the end of the period). [Reported by ash-Shafi'i] .

Narrated Ibn 'Abbas (RA): The swearing to stay away from one's wife in al-Jahiliyyah era was for one or two years. Then, Allah appointed a period of four months for it. So, if it is less than four months, it is not swearing to stay away from one's wife. [al-Baihaqi reported it]

Narrated [Ibn 'Abbas (RA)] : A man had vowed to make his wife like his mother (i.e. forbidden for him). Then he had intercourse with her, so he went to the Prophet ( صلی اللہ علیہ وسلم ) and said, "I had intercourse with her before making the atonement." He replied, "Do not go near her till you do what Allah has commanded you to do." Reported by al-Arba'a. at-Tirmidhi graded it Sahih (authentic) but an-Nasa'i held that the stronger view is that it is Mursal (missing link after the Tabi'i)] . al-Bazzar reported it through another chain, from Ibn 'Abbas (RA) and he added: "Make atonement and do not repeat it."

Narrated Salamah bin Sakhr (RA): When the month of Ramadan came, I feared lest I would have intercourse with my wife. So, I vowed az-Zihar (the she was like my mother). Then, one night something of her was uncovered to me and I had intercourse with her. Allah's Messenger ( صلی اللہ علیہ وسلم ) afterwards said to me, "Set a slave free," and I replied, "I do not possess one (that I can free)." He said, "Then fast two consecutive months." I replied, "Have I fallen into that which I have fallen into except due to fasting!?" He said, "Feed sixty poor people with an 'Araq (basket) of dates." [Reported by Ahmad and al-Arba'a except an-Nasa'i. Ibn Khuzaimah and Ibn al-Jarud graded it Sahih (authentic)] .