It was
narrated from Abu Sa’eed that the Messenger of Allah (ﷺ)
said:
“On the day when He created the heavens and the earth, Allah
created one hundred (degrees of) mercy, of which He placed one on
earth, by virtue of which mothers show compassion to their children
and animals as well as the birds show compassion to one another. And
He kept back ninety-nine (degrees of) mercy. When the Day of
Resurrection comes, Allah will complete this mercy.”