´It was narrated that Abu Hurairah said:` "The Messenger of Allah said: The month may be twenty-nine days or it may be thirty. When you see it, then stop fasting, and it is obscured from you (too cloudy), then complete the count."'
Hadith Referenceسنن نسائي / كتاب الصيام / 2140
Hadith Gradingالألبانی:صحيح الإسناد | زبیر علی زئی:صحيح
´It was narrated from Ibn 'Umar that the Prophet said:` "We are an unlettered Ummah, we do not use astronomical counting or computation. The month is like this, and this, and this," he did three times, showing it as twenty-nine.
Hadith Referenceسنن نسائي / كتاب الصيام / 2142
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه
´It was narrated from Saeed bin 'Amr bin Saeed bin Abi Al-As, that:` he heard Ibn 'Umar narrate that the Prophet said; "We are an unlettered Ummah; we do not use computation. The month is like this, and this, and this," and he held down his thumb the last time. "And the month is like this, and this, and this," completing thirty.
´It was narrated from Ibn 'Umar that the Prophet said:` "The month is like this," and (one of the narrators) Shubah did the same gesture as Jabalah had done, copying, Ibn 'Umar: "It is twenty-nine, as he gestured twice with all fingers of both hands, and putting down one of his fingers the third time."
Hadith Referenceسنن نسائي / كتاب الصيام / 2144
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:متفق عليه