Abdullah bin Abbas (may Allah be pleased with them both) narrates: A Bedouin came to the service of the Prophet (peace be upon him) and said: I have seen the new moon of the first (of the month). The Prophet (peace be upon him) asked: "Do you bear witness that there is no deity except Allah and that Muhammad (peace be upon him) is the Messenger of Allah?" He replied: Yes! So the Prophet (peace be upon him) announced that the people should fast.

Abdullah bin Abbas (may Allah be pleased with them both) narrates: On the night of the new moon of Ramadan, a man came and said: O Messenger of Allah! I have seen the new moon. The Prophet Muhammad (peace be upon him) said: "Do you bear witness that there is no deity except Allah and that Muhammad (peace be upon him) is the Messenger of Allah?" He replied: Yes! So the Prophet Muhammad (peace be upon him) announced: "You all should begin fasting." This narration has been transmitted by the narrator Shu’bah from Thawri as a mursal narration.

Ikrimah narrates: A Bedouin testified before the Prophet Muhammad (peace be upon him) that he had seen the moon, so the Prophet (peace be upon him) said: "Do you testify that there is no deity except Allah and that Muhammad (peace be upon him) is the Messenger of Allah?" He replied: Yes! So the Prophet (peace be upon him) ordered the people to observe Eid al-Fitr.

Ikrimah narrates: People were in doubt about the sighting of the Ramadan moon. They intended not to fast the next day and not to perform Tarawih that night. A Bedouin came to the Prophet (peace be upon him) from the direction of the stony land and testified that he had seen the moon. He was brought to the Prophet (peace be upon him), who asked: "Do you testify that there is no deity except Allah and that I am the Messenger of Allah?" He replied: Yes! Then he testified that he had seen the moon. So the Prophet (peace be upon him) ordered Sayyiduna Bilal (may Allah be pleased with him) to announce to the people that they should perform Tarawih that night (and fast the next day). Only the narrator named Hammad mentioned the performance of Tarawih.

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "Do not fast before the sighting of the crescent of Ramadan (as a precaution), however (if someone has a habit of fasting and it coincides with that day, then he may fast). Begin fasting upon sighting the crescent and end fasting upon sighting it. If it is cloudy, then complete the count to thirty and then end fasting." All the narrators of this narration are trustworthy.

Abu Huraira (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "Do not begin fasting one or two days before Ramadan (out of precaution); rather, complete the count of thirty and then begin and end fasting."

The same narration is transmitted with another chain (then stop fasting).

The same narration is also transmitted with another chain from Sayyiduna Abu Hurairah, may Allah be pleased with him, and all these chains are authentic.

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: The Noble Prophet (peace and blessings be upon him) said: "When you see the new moon (of Ramadan), begin fasting, and when you see it (of Shawwal), stop fasting. And if it is cloudy, then complete thirty days of fasting."

Sayyiduna Rubayyi narrates: The Noble Prophet (peace and blessings be upon him) said:“Begin fasting (for Ramadan) upon sighting it (the new moon), and end the fast (with Eid al-Fitr) upon sighting it. If it is cloudy, then complete the count of thirty days of Sha’ban, then begin fasting. And if (on the last day of Ramadan) it is cloudy, then complete thirty days of Ramadan, and then end the fast, except in the case that you see the new moon before that (i.e., if you see the new moon after twenty-nine days).”This narration is also transmitted with some other chains.