Mishkat al-Masabih — Hadith #37746

Then he prostrated himself for a long time, then departed and the sun had become clear. He preached to the people, and after praising and extolling God he said, “The sun and the moon are two of God’s signs; they are not eclipsed on account of anyone’s death or on account of anyone's birth, so when you see that supplicate God, declare His greatness, pray and give alms." He then said, “O people of Muhammad, I swear by God that no one is more indignant than God when His servant or handmaiden commits fornication. O people of Muhammad, I swear by God that if you knew what I know you would laugh little and weep much." (Bukhari and Muslim.)