1242/1 - Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah’s peace and blessings be upon him) said: “Whoever forgetfully eats or drinks should complete his fast, for it was Allah who fed him and gave him to drink.” [Narrated by Al-Bukhāri and Muslim]
1) A person is not to blame for something he has done out of forgetfulness, nor does this invalidate acts of worship. This is because he has not done it intentionally.
2) Allah Almighty is merciful to His servants, as He does not burden them with anything beyond their capacity.
One of the rights of Muslims upon one another is that if someone forgets, another reminds him. Hence, if you see a fasting person eat, you should remind him that he is fasting. The Prophet (may Allah’s peace and blessings be upon him) said regarding prayer: “And when I forget, remind me.”
For example, if you see a person pray away from the direction of the Qiblah, you should draw his attention.
1243/2 - Laqīt ibn Saburah (may Allah be pleased with him) reported: I said: “O Messenger of Allah, tell me about ablution.” He said: “Perform ablution thoroughly, pass the water between your fingers and toes, and snuff water well into your nostrils, unless you are fasting.” [Narrated by Abu Dāwūd and Al-Tirmidhi, who classified it as Hasan Sahīh (sound and authentic)]
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1) It is Sunnah to sniff water well into the nostrils in ablution, except if a person is fasting, lest water may reach deep inside.
2) Water reaching deep inside through the nose is just like water entering through the mouth; both invalidate the fast.
1244/3 - ‘Ā’ishah (may Allah be pleased with her) reported: “The Messenger of Allah (may Allah’s peace and blessings be upon him) would sometimes get up at the time of Fajr while in a state of ritual impurity after having sexual intercourse with his wives; then he would take a bath and fast.” [Narrated by Al-Bukhāri and Muslim]
1245/4 - ‘Ā’ishah and Um Salamah (may Allah be pleased with both of them) reported: “The Messenger of Allah (may Allah’s peace and blessings be upon him) would wake up in the morning in a state of ritual impurity, without having a wet dream, and he would observe fast.” [Narrated by Al-Bukhāri and Muslim]
1) It is permissible for a person in a state of ritual impurity to begin the fast, even if he does not take the ritual bath before daybreak.
2) The basic rule regarding the Prophet’s actions is that they constitute conclusive evidence and are legislations for the Muslims. No one should say that the Prophet’s practices only applies to himself unless this is established by a proof.
3) They highlight the merit of the Mothers of the Believers (may Allah be pleased with them) as they conveyed with honesty and integrity what had taken place in their houses relating to the Shariah rulings for the Ummah.