Hadith on prayer...

"If anyone performs two cycles of Prayer 

without the distraction of any worldly thought, 

all his previous sins will be forgiven." 

(al-Bukhari)

Hadith on the All-Forgiving

Muhammad, peace be upon him, said:

A prostitute was forgiven by Allah,

because, passing by a panting dog near a well

and seeing that the dog was about to die of thirst,

she took off her shoe, and tying it with her head-cover

she drew out some water for it.

So, Allah forgave her because of that.

(Hadith)