AbuBakr ibn AbdurRahman reported on the authority of a Companion of the Prophet (saws): I saw the Prophet (saws) commanding the people while he was travelling on the occasion of the conquest of Mecca not to observe fast. He said: Be strong for your enemy. The Messenger of Allah (saws) fasted himself.

Narrated AbuBakr:

A man who narrated his tradition to me said: I have seen the Messenger of Allah (saws) in al-Arj pouring water over his head while he was fasting, either because of thirst or because of heat.

On the days of the conquest of Mecca, when Mecca was captured, Fatimah came and sat on the left side of the Messenger of Allah (saws), and Umm Hani was on his right side. A slave-girl brought a vessel which contained some drink; she gave it to him and he drank of it. He then gave it to Umm Hani who drank of it. She said: Messenger of Allah, I have broken my fast; I was fasting. He said to her: Were you making atonement for something? She replied: No. He said: Then it does not harm you if it was voluntary (fast).

“One of the best actions of the fasting person is using the tooth stick.”

"the Messenger of Allah was cupped while he was fasting and in Ihram."

Yahya related to me from Malik from Ibn Shihab that Humayd ibn Abd ar-Rahman ibn Awf heard Muawiya ibn Abi Sufyan say from the mimbar on the day of Ashura in the year in which he made the hajj, "People of Madina, where are your learned men? I heard the Messenger of Allah, may Allah bless him and grant him peace, say about this day, 'This is the day of Ashura, and fasting it has not been prescribed for you. I am fasting it, and whoever of you wants to fast it can do so, and whoever does not want to, does not have to.' "

Yahya related to me from Malik from Abu'z Zinad from al-Araj from Abu Hurayra that the Messenger of Allah, may Allah bless him and grant him peace, said, "By the One in Whose hand my self is, the smell of the breath of a man fasting is better with Allah than the scent of musk.' He leaves his desires and his food and drink for My sake. Fasting is for Me and I reward it. Every good action is rewarded by ten times its kind, up to seven hundred times, except fasting, which is for Me, and I reward it.' "

The Messenger of Allah (saw) used to kiss when he was fasting.

"I was sitting with the Prophet when some drink was brought, so he drank from it, then he offered it to me and I drank it. Then I said: 'I have indeed sinned, so seek forgiveness for me.' He said: 'What is that?' I said: 'I was fasting, then I broke the fast.' He said: 'Were you performing a fast that you had to make up?' I said: 'No.' He said: 'Then it is no harm for you.'"

Yahya related to me from Malik from Yazid ibn Abdullah ibn al- Hadi from Abu Murra, the mawla of Umm Hani, the sister of Aqil ibn Abi Talib, that Abdullah ibn Amr ibn al-As told him that he had visited his father Amr ibn al-As and found him eating. His father had invited him to eat, and when he replied that he was fasting, his father said, "These are the days on which the Messenger of Allah, may Allah bless him and grant him peace, forbade us to fast, and told us to break the fast on them."

Malik said, "These days are the days of tashriq."

“Whoever is invited to eat when he is fasting, let him accept the invitation; and if he wants to let him eat, and if he wants let him not eat.”

“When anyone of you is fasting, let him not utter evil or ignorant speech. If anyone speaks to him in an ignorant manner, let him say: ‘I am fasting.’”

“Al-Aswad and Masruq entered upon ‘Aishah and said: ‘Did the Messenger of Allah (saw) touch (his wife) when he was fasting?’ She said: ‘He used to do that, and he was the strongest of all of you in controlling his desire.’”

"Whoever eats out of forgetfulness while fasting, let him complete his fast, for it is Allah Who has fed him and given him to drink."

Yahya related to me from Malik that he heard that a beggar asked A'isha, the wife of the Prophet, may Allah bless him and grant him peace, for something while she was fasting and there was only a loaf of bread in her house. She said to her female mawla, "Give it to him." The mawla protested, "You will not have anything to break your fast with." A'isha repeated, "Give it to him," so she did so. When evening came, the people of a house or a man who did not usually give to them, gave them a sheep and some food to go with it. A'isha, umm al-muminin, called her mawla and said, "Eat from this. This is better than your loaf of bread."

“There are people who fast and get nothing from their fast except hunger, and there are those who pray and get nothing from their prayer but a sleepless night.”

“The Messenger of Allah (saw) used to kiss when he was fasting, and who among you can control his desire as the Messenger of Allah (saw) used to control his desire?”