They have spoken a lie

517. Aban, from Umar Bin Yazeed who said: I said to Abu Abdullah (asws) that: ‘Al-Mugheira (and his people) are alleging that this day is for the night that approaches it’. So he (asws) said: ‘They lie! This day today is for the night that has passed. The people of Al-Nakhla, when they see the crescent say, ‘The Sacred Month has entered’.