Muslim (233) narrated from Abu Hurayrah (may Allaah be pleased with him)
that the Messenger of Allaah (peace and blessings of Allaah be upon him)
said: “The five daily prayers, and from one Jumu’ah to the next, are an
expiation for whatever sins come in between, so long as one does not commit
any major sin.”

It was narrated from Abu Hurayrah that the Prophet (peace and blessings of
Allaah be upon him) said: “Whoever does ghusl then comes to Jumu’ah, and
prays as much as Allaah decrees for him, then listens attentively until the
khutbah is over, then prays with him (the imam), will be forgiven for (his
sins) between that and the next Jumu’ah and three more days.” Narrated by
Muslim, 857

Al-Nawawi said:

The scholars said that what is meant by his being forgiven between the two
Jumu’ahs and three more days is that a good deed is worth ten like it, so he
will be rewarded with ten hasanahs for each of the good deeds that he did on
Friday. Some of our companions said: what is meant by what is between the
two Jumu’ahs is from Jumu’ah prayer and the khutbah until the same time on
the following Friday, so that it will be seven days, no more and no less,
then three days are added making ten in all.

2 – Coming early to Jumuah brings a great reward.

Al-Bukhaari (814) and Muslim (850) narrated from Abu Hurayrah (may Allaah be
pleased with him) that the Messenger of Allaah (peace and blessings of
Allaah be upon him) said: “Whoever does ghusl on Friday like ghusl for
janaabah, then goes to the prayer (in the first hour, i.e., early), it is as
if he sacrificed a camel. Whoever goes in the second hour, it is as if he
sacrificed a cow; whoever goes in the third hour, it is as if he sacrificed
a horned ram; whoever goes in the fourth hour, it is as if he sacrificed a
hen; and whoever goes in the fifth hour it is as if he offered an egg. When
the imam comes out, the angels come to listen to the khutbah.”

3 – Walking towards Masjid

If a person walks to Jumu’ah prayer, for every step he will have the reward
of fasting and praying qiyaam for one year.

It was narrated from Aws ibn Aws al-Thaqafi that the Messenger of Allaah
(peace and blessings of Allaah be upon him) said: “Whoever does ghusl on
Friday and causes (his wife) to do ghusl, and sets out early, and comes
close to the imam and listens and keeps quiet, for every step he takes he
will have the reward of fasting and praying qiyaam for one year.”

 Al-Haafiz ibn Hajar (may Allaah have mercy on him) said, after quoting the
ahaadeeth which speak of the virtues of Jumu’ah prayer:

What we have quoted, when taken all together, indicates that the expiation
of sins from one Friday to the next is subject to all the conditions
mentioned above being met, namely doing ghusl, cleaning oneself, putting on
perfume, wearing one's best clothes, walking in a calm and dignified manner,
not stepping over people, not pushing between two people, not offending
others, praying naafil prayers, listening attentively and avoiding idle
speech.

*And Allaah knows best.*

(source-islam-qa.com)