Abu Hurairah (May Allah be pleased with him) states that
Messenger of Allah (sallallaho alaihi wa sallam) has said:
" The Haji and one who performs Umrah are the
Ambassadors of Allah (Subhanhu Watala).
If they beseech Him,
He (Jalla Jalalahu) would respond to them,
and if they seek His forgiveness
He (Subhanhu Watala) would forgive them."
( Ibn Majah )