Sayyidah Aysha (RA) narrats, “Both I and Hafsa (RA) were keeing a supererogatory fast when food was brought before us. We felt inclined to eat it, so we ate it. After that, afsa (RA) said to the Prophet (SAW), ‘O Messenger of Allah! Both of us were fasting while food was brought to us. We liked the food and ate it (and thus the fast was void).’ ‘Keep an expiatory fast in place of it on some other day.’ replied the Prophet (SAW).’”
It is related by Abu Ayub Ansari (RA) that the Messenger of Allah (SAW) said: “Whoever observed the fasts of Ramadan, and after it, observed six supererogatory fasts in the month of Shawal, it will be equal to fasting throughout the year.”
It is related by Abu Hurayra (RA) that the Prophet (SAW) said, “In the last night of Ramadan the decision of forgiveness is taken for my followers.” He was asked, “O Messenger of Allah (SAW)! Is it Laylatul Qadr?” “No”, replied Prophet (SAW), “it is not Laylatul Qadr but it is when the workman completes his job that he is paid full wages.”
It is related by Abdullah bin Abbas(RA) that te Messenger of Allah (SAW) said about the person who is in I’tikaf that “He is protected from sin and the account of his virtuous deeds continues like that of a virtuous bondsman and (the deeds) are recorded in his balance-sheet of deeds.”
Sayyidah Aysha (RA) related that the rules of Shari’ah for the Mu’takif (i.e. one who is in I’tikaf) are that he should neiter go out to visit the sick nor attend a funeral nor have intercourse nor engage in kissing and embracing not step out of the mosque for personal needs except those that are unavoidable (such as, answering the call of nature), and there can be no I’tikaf without fasting – and it must be carried out in Jami’ Masjid.