Hadith 852
This hadith has been narrated by Abu Hurairah (RA) by another chain of transmitters.
Hadith 1080
'Abdullah bin 'Umar (Allah be pleased with both of them) reported Allah's Messenger (ﷺ) as saying: The month (of Ramadan) may consist of twenty nine days; so when you see the new moon observe fast and when you see (the new moon again at the commencement of the month of Shawwal) then break It, and if the sky is cloudy for you, then calculate it (and complete thirty days).