Narrated `Abdullah bin `Umar: Allah’s Messenger (ﷺ) said, “The month (can be) 29 nights (i.e. days), and do not fast till you see the moon, and if the sky is overcast, then complete Sha’ban as thirty days.” Sahih Sahih al-Bukhari,
Daily Hadith
Narrated `Abdullah bin `Umar: Allah’s Messenger (ﷺ) said, “The month (can be) 29 nights (i.e. days), and do not fast till you see the moon, and if the sky is overcast, then complete Sha’ban as thirty days.” Sahih Sahih al-Bukhari,