It is narrated from Sayyiduna Abu Hurairah (may Allah be pleased with him) and Sayyiduna Hasan (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him and his family) said: When any one of you is fasting and he eats or drinks forgetfully, then he should complete his fast, for it is Allah Almighty who has fed him and given him drink.

Umm Hakim narrates that Sayyida Umm Ishaq (may Allah be pleased with her) said: I was present in the service of the Messenger of Allah (peace and blessings be upon him), a bowl of tharid was brought to him, I and Sayyiduna Dhul-Yadayn (may Allah be pleased with him) also ate that food with the Prophet (peace and blessings be upon him). The Messenger of Allah (peace and blessings be upon him) gave me a bone with meat on it and said: Umm Ishaq! Eat this as well. At that moment, I remembered that I was fasting. My hand stopped right there; I could neither move it forward nor backward. The Prophet (peace and blessings be upon him) said: What has happened to you? I said: I was fasting and I forgot. Sayyiduna Dhul-Yadayn (may Allah be pleased with him) said: Now you remembered, after being full. But the Noble Prophet (peace and blessings be upon him) said: Complete your fast, because Allah Almighty has provided this sustenance for you.

It is narrated from Sayyida Asma bint Abi Bakr (may Allah be pleased with her), she says: During the time of the Messenger of Allah (peace and blessings be upon him), on one day in the month of Ramadan, clouds appeared (and we thought that the sun had set), so we broke our fast, but later the sun became visible. I (Abu Usama) asked Hisham: So were the people ordered to make up that fast? He said: Is there any other option besides this?

It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: When the call to prayer for Fajr is given and any of you is in a state of major ritual impurity (junub), then he should not fast that day.

Raja bin Haywah says that Ya'la bin Munabbih got married in Ramadan, and thus he entered the morning in a state of janabah (major ritual impurity). So he met Sayyiduna Abu Hurairah (may Allah be pleased with him) and asked him about this. In response, he said: Break your fast. Ya'la said: Would it not be better if I complete today's fast and then keep another fast in its place? He said: Break your fast. Ya'la then went to Marwan and mentioned this incident. Marwan sent Abu Bakr bin Abdur Rahman to Lady Aisha (may Allah be pleased with her). So he asked the Lady, and she replied: The Messenger of Allah (peace and blessings be upon him) would enter the morning in a state of janabah while fasting, and this janabah was not due to a wet dream. Abu Bakr bin Abdur Rahman returned and narrated this hadith to Marwan. He said: Go and inform Sayyiduna Abu Hurairah (may Allah be pleased with him) of this. Abu Bakr bin Abdur Rahman said: He is my neighbor, my neighbor (so I will not be able to tell him this). But Marwan said: I give you a definite order to go and meet him and narrate this hadith to him. So he went and met him and narrated this hadith to him. Sayyiduna Abu Hurairah (may Allah be pleased with him) said: I did not hear this directly from the Prophet (peace and blessings be upon him), but Sayyiduna Fadl bin Abbas (may Allah be pleased with him) informed me of it. Ibn Awf says: After this, when I met Raja, I asked him: Who narrated the hadith of Ya'la to you? He said: Ya'la himself narrated it to me.

Abdur Rahman bin ‘Atab says: Sayyiduna Abu Hurairah (may Allah be pleased with him) used to say that whoever wakes up in a state of major ritual impurity (janabah), his fast is not valid. Marwan bin Hakam sent me and another man to Sayyidah Aisha (may Allah be pleased with her) and Sayyidah Umm Salamah (may Allah be pleased with her) so that we could ask them about the one who wakes up in a state of janabah before performing ghusl (ritual bath) during the month of Ramadan. One of them said: The Messenger of Allah (peace and blessings be upon him) would wake up in a state of janabah, but would then perform ghusl and complete the fast of that day. The other said: He (peace and blessings be upon him) would wake up in a state of janabah, but this janabah was not due to a wet dream, then he (peace and blessings be upon him) would complete his fast. Both of them returned and narrated this hadith to Marwan. Marwan said to Abdur Rahman: Inform Sayyiduna Abu Hurairah (may Allah be pleased with him) of the hadith of these two (Mothers of the Believers). Upon hearing this, Sayyiduna Abu Hurairah (may Allah be pleased with him) said: That was indeed my assumption, that was indeed my opinion. Marwan said to him: Do you give people religious verdicts based on assumption and personal opinion?

Abdur Rahman bin Harith says: I went to Lady Aisha (may Allah be pleased with her), and she narrated this hadith that the Messenger of Allah (peace and blessings be upon him) would enter the morning in a state of major ritual impurity (janabah), then he (peace and blessings be upon him) would perform ghusl and proceed towards the mosque, while drops of water would be falling from his head, and he (peace and blessings be upon him) would also be fasting that day. When I narrated this hadith to Marwan bin Hakam, he said to me: Go and inform Abu Hurairah (may Allah be pleased with him) of this hadith from Lady Aisha (may Allah be pleased with her). I said: He is my friend and I wish that you excuse me in this matter. But he said: I insist that you go. So, both he and I went to Abu Hurairah (may Allah be pleased with him), and I conveyed Lady Aisha’s (may Allah be pleased with her) statement to him. He said: (This means that) Lady Aisha (may Allah be pleased with her) knows more about the Messenger of Allah (peace and blessings be upon him).

(Second chain) Abu Bakr bin Abdur Rahman says: My father and I both went to the service of Sayyida Aisha and Sayyida Umm Salama (may Allah be pleased with them), and both of them said that the Messenger of Allah (peace and blessings be upon him) would enter the morning in a state of janabah and would also fast.

(Third chain) They say: The wives of the Noble Prophet, Sayyida Aisha (may Allah be pleased with her) and Sayyida Umm Salama (may Allah be pleased with her), both narrated that the Messenger of Allah (peace and blessings be upon him) would enter the morning in a state of major ritual impurity (janabah) due to intimacy with his wife, then he would perform ghusl before offering the Fajr prayer and would also fast that day. They say: When I mentioned this hadith to Sayyiduna Abu Hurairah (may Allah be pleased with him), he said: This hadith is not known to me, however, Sayyiduna Fadl bin Abbas (may Allah be pleased with him) narrated that hadith to me.

. (Fourth chain) It is similar to the previous hadith, except that it contains these words: The Noble Prophet (peace and blessings be upon him) would enter the morning in a state of major ritual impurity due to intercourse, not due to a wet dream, and then he would fast that day. In the hadith of ‘Abd Rabbah, there is also mention of Ramadan.