What was the Prophet Muhammad's (peace be upon him) reaction when he saw the signs of cheerfulness of Abdur Rahman bin 'Auf's marriage?
 Narrated Anas:                     `Abdur Rahman bin `Auf married a woman and gave her gold equal to the weight of a date stone (as Mahr). When the Prophet noticed the signs of cheerfulness of the marriage (on his face) and asked him about it, he said, "I have married a woman and gave (her) gold equal to a date stone in weight (as Mahr).