«ما على الأرض أحد يقول لا إله إلا الله والله أكبر ولا حول ولا قوة إلا بالله إلا كفرت عنه خطاياه ولو كانت مثل زبد البحر»
The Prophet (peace and blessings be upon him) said:
"Whoever on earth says 'La ilaha illallahu wallahu akbar, wa la hawla wa la quwwata illa billah' (There is none worthy of worship except Allah, Allah is the Greatest, and there is no power to avoid sin and no strength to do good except by the enabling of Allah), his sins are forgiven, even if they are like the foam of the sea."
Hadith Referenceصحیح الجامع الصغیر / حرف الميم / 5636