Ayoub al-Sakhtiyani أيوب السختياني · Fasting (Kitab Al-Siyam)

The Prophet (ﷺ) said: The month consists of twenty-nine days, but do not fast till you sight it (the moon) and do not break your fast till you sight it. If the weather is cloudy, calculate it thirty days. When the twenty-ninth of Sha'ban came, Ibn Umar would send someone (who tried) to sight the moon for him. If it was sighted, then well and good; in case it was not sighted, and there was no cloud and dust before…

Ibn ‘Umar reported the Apostle of Allaah(ﷺ) as saying “The month consists of twenty nine days, but do not fast till you sight it (the moon) and do not break your fast till you sight it. If the weather is cloudy, calculate it thirty days. When the twenty-ninth of Sha’ban came, Ibn ‘Umar would send someone (who tried) to sight the moon for him. If it was sighted then well and good, in case it was not sighted and there…

The tradition mentioned above (No. 2361) has also been transmitted by Shaddad ibn Aws through a different chain of narrators. This version adds: While Shaddad ibn Aws was walking along with the Prophet (ﷺ)....The narrator then transmitted the rest of the tradition to the same effect.

The Prophet (ﷺ) as saying: A man who cups and a man who gets himself cupped break their fast. Abu Dawud said: Ibn Thawban transmitted a similar tradition from his father on the authority of Makhul through an chain of narrators mentioned by him.

Sufyan and Shu'bah differed among themselves on the name of the narrator Ibn al-Mutawwas and Abu al-Mutawwas.