The Prophet, peace and blessings of Allah be upon him, said:
“There is no Muslim man who, when the time for a prescribed prayer comes, he does wudu properly, has the proper attitude of khushu, and bows properly, but it will be an expiation for all his previous sins, so long as they were not major sins (kabeerah). And this is the case for life” (Reported by Muslim, 1/206, no. 7/4/2)
The reward recorded for the prayer is in proportion to the degree of khushu. The Prophet, peace and blessings of Allah be upon him, said:
“A slave may pray and have nothing recorded for it except a tenth of it, or a ninth, or an eighth, or a seventh, or a sixth, or a fifth, or a quarter, or a third, or a half.” (Reported by Imaam Ahmad; Saheeh al-Jaami’, 1626).
Only the parts of the prayer where one focused and concentrated properly will be of any avail to us. It was reported that Ibn ‘Abbaas, may Allah be pleased with him, said: “You will only have from your prayer that which you focused on.”
Sins will be forgiven if you concentrate properly and have full khushu, as the Prophet, peace and blessings of Allah be upon him, said:
“When a slave stands and prays, all his sins are brought and placed on his head and shoulders. Every time he bows or prostrates, some of them fall from him.” (Reported by al-Bayhaqi in al-Sunan al-Kubraa, 3/10)
Al-Manaawi said: “What is meant is that every time a pillar (essential part) of the prayer is completed, part of his sins fall from him, until when he finishes his prayer, all his sins will be removed. This is in a prayer where all the conditions are met and the essential parts are complete. What we understand from the words “slave” and “stands” is that he is standing before the King of Kings [Allah] in the position of a humble slave.” (Reported by al-Bayhaqi in al-Sunan al-Kubraa, 3/10)
The one who prays with khushu will feel lighter when they finish their prayer, as if their burdens have been lifted from them. They will feel at ease and refreshed, so that they will wish they had not stopped praying, because it is such a source of joy and comfort for them in this world. They will keep feeling that they are in a constricting prison until they start to pray again; they will find comfort in prayer instead of wanting just to get it over and done with. Those who love prayer say: we pray and find comfort in our prayer, just as their leader, example and Prophet, peace and blessings of Allah be upon him, said, “O Bilaal, let us find comfort in prayer.” He did not say “Let us get it over and done with.”
The Prophet, peace and blessings of Allah be upon him, said: “My joy has been made in prayer.” So whoever finds their joy in prayer, how can they bear to look for joy anywhere else, or to keep away from it?