Shaykh Yasir Qadhi delves into the names of Allah that relate to Rahma which is used in almost 500 verses of the Noble Qur'an and the Name of Allah, Ar-Rahman occurs 57 times.
Some differences between Ar-Rahman and Ar-Raheem are as follows:
Ar-Rahman (Mercy) is for all of His creation, while Ar-Raheem (mercy) is only for the Muslims.
Ar-Rahman's mercy is comprehensive, while Ar-Raheem’s Mercy reaches only those whom He wants to reach.
Ar-Rahman is in this world, while Ar-Raheem is in the Hereafter.
Ar-Rahman describes the nature of Allah, Ar-Raheem describes His actions.
Ar-Raheem occurs 114 times in the Qur'an. The two most common combinations are Al-Ghafur Ar-Raheem and Al-Azeez Ar-Raheem. Al-Azeez Ar-Raheem means the One who has Power and Mercy. Al-Ghafur Ar-Raheem means the One who forgives because He has Mercy.
What should be the effect of the 5 names derived from Rahma on our hearts?
Increase in our hearts the love of Allah.
Our hope in Allah's Mercy should be infinite. We need to have good thoughts of Allah.
To be shy of Allah's Mercy. How can we be disobedient to someone who gives us so much?
We should be merciful to others.
To use them in Du'a such as "Ya Rahman, Ya Raheem" etc.
How do we attain the Rahma of Allah?
The ones who show mercy, Ar Rahman will have mercy on them.
Coming to the Masjid, praying and listening to Islamic knowledge.
Obey Allah and His Messenger SAW.