Islam is mercy for the entire universe, believers, unbelievers and even animals

http://abuaminaelias.com/islam-is-mercy-for-the-entire-universe-believers-and-unbelievers-even-animals/

ثُمَّ كَانَ مِنَ الَّذِينَ آمَنُوا وَتَوَاصَوْا بِالصَّبْرِ وَتَوَاصَوْا بِالْمَرْحَمَةِ

Then be among those who believed and advised one another to patience and advised one another to mercy.

Surah Al-Balad 90:17