Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates from the Noble Prophet (peace and blessings be upon him) that he (peace be upon him) said: "A month can also be of twenty-nine days." And he (peace be upon him) folded his thumb. Therefore, do not begin fasting without sighting the moon, nor stop fasting without sighting the moon. Then, if the moon is concealed from you by clouds, then estimate its count."

Hazrat Sila bin Zufar narrates that we were with Sayyiduna Ammar (may Allah be pleased with him) when a roasted goat was brought to him. He said, "Eat." Some people held back. One of them said, "I am fasting." So Sayyiduna Ammar (may Allah be pleased with him) said, "Whoever fasts on the day of doubt has disobeyed Abul Qasim (peace and blessings be upon him)."

Abu al-Bakhtari narrates that we saw the crescent of Ramadan while we were at the place of Dhat ‘Irq. He says, so we sent a man to ask Sayyiduna Ibn Abbas (may Allah be pleased with them both) about it, so Sayyiduna Ibn Abbas (may Allah be pleased with them both) said:“Indeed, the Messenger of Allah (peace and blessings be upon him) said: ‘Verily, Allah the Exalted has spread out the moon for your sight. So if the moon is concealed from you by clouds, then complete the count to thirty.’”

It is narrated from Janab Kareeb that Umm Fadl bint Harith sent him to Sayyiduna Muawiyah (may Allah be pleased with him) in the land of Shaam. He says that I came to Shaam and fulfilled his work and need, and I saw the crescent of Ramadan in Shaam itself. So we saw the crescent on the night of Friday, and the people saw the crescent and fasted, and Sayyiduna Muawiyah (may Allah be pleased with him) also fasted. Then at the end of the month, I returned to Madinah Munawwarah, and Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) asked me about the crescent, so he inquired, "When did you see the crescent?" I replied, "We saw the crescent on the night of Friday." He asked, "Did you yourself see the crescent on the night of Friday?" I replied, "Yes, I myself saw the crescent on the night of Friday, and the people also saw the crescent and fasted, and Sayyiduna Muawiyah (may Allah be pleased with him) also fasted." So Sayyiduna Ibn Abbas (may Allah be pleased with them both) said, "But we saw the crescent on the night of Saturday, therefore we will continue to fast in this manner until we complete thirty days or see the crescent." I asked, "Will you not suffice with the sighting and fasting of Sayyiduna Muawiyah (may Allah be pleased with him)?" He replied, "No, this is how the Messenger of Allah (peace and blessings be upon him) commanded us."

Hazrat Hayat bin Suhaim narrates that I heard Sayyiduna Ibn Umar (may Allah be pleased with them both) narrating from the Prophet Muhammad (peace and blessings be upon him) that he said: "The month consists of twenty-nine days."

Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, the month can also be of twenty-nine days."

Abu Al-Bakhtari narrates that we set out to perform Umrah. When we stopped at the place of Batn Nakhlah, we saw the moon. Some people said that it was the moon of the third night, and some said that it was the moon of the second night. He says that we met Sayyiduna Ibn Abbas (may Allah be pleased with them), so we submitted to him that we saw the moon and some people said that it was the moon of the third night, and some said that it was the moon of the second night. So he asked, "On which night did you see it?" We replied, "We saw it on such and such night." So he said, "Indeed, the Messenger of Allah (peace and blessings be upon him) said: 'Verily, Allah the Exalted has made it appear larger for the purpose of sighting. It is for the same night on which you saw it.'"

Sayyiduna Sa’d bin Abi Waqqas (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said:“A month is like this, and like this, and like this.”In the narration of Muhammad bin Bishr, it is mentioned that the Messenger of Allah (peace and blessings be upon him) came to us while he was saying:“A month is like this, like this, and like this,”then the third time he folded his finger (indicating twenty-nine).