Narrated Abu Masud:
Allah's Apostle said, "The sun and the moon do not eclipse because of someone's death or life but they are two signs amongst the signs of Allah, so pray whenever you see them." (Sahih Bukhari 2.165, also Sahih Bukhari 2.161, Sahih Bukhari 2.303)
Narrated Abu Bakr:Some questions:Allah's Apostle said: "The sun and the moon are two signs amongst the signs of Allah and they do not eclipse because of the death of someone but Allah frightens His devotees with them." (Sahih Bukhari 2.158)