Bismillaahir Rahmaanir Raheem
As Salamu Alaykum wa Rahmatullahi Wa Barkatuh!
Mu`adh (Radi'Allahu anhu) reported:
The Messenger of Allah (Sall'Allahu alaihi wasallam)
took hold of my hand and said,
"O Mu`adh! By Allah I love you,
so I advise you to never forget
to recite after every prayer:
"Allahumma a`inni ala dhikrika,
wa shukrika, wa husni `ibadatika "
(O Allah, help me remember You, to be grateful to You,
and to worship You in an excellent manner).''
Narrated 'Abdullah bin Umar: Allah's Apostle (p.b.u.h) said, "Anyone of you attending the Friday (prayers) should take a bath."
Reference: Sahihlil-Bukhari(Friday Prayer)